Moderation Assist is a free, built-in feature for Facebook Page admins that automatically hides comments based on rules you define. It sits inside Meta Business Suite under your Page's Professional Dashboard and lets you filter comments by keywords, sender characteristics, and content type — without installing anything or paying for third-party tools.
It works well for basic organic comment filtering. But if you run ads, manage multiple pages, or need anything beyond keyword matching, you'll hit its limits fast. This guide covers exactly what Moderation Assist does, how to set it up, where it falls short, and what the alternatives look like.
How to Find and Set Up Moderation Assist
Moderation Assist lives inside Meta Business Suite, not in Facebook's regular Page settings. Here's how to get to it:
- Go to business.facebook.com and select your Page
- Click Professional Dashboard in the left sidebar
- Scroll to Moderation Assist (under the "Your tools" section)
- Toggle on the filters you want to activate
If you don't see the option, make sure you have admin access to the Page. Moderation Assist is only available to Page admins — editors and moderators can't configure it.
Once enabled, any new comments matching your rules will be automatically hidden. Hidden comments are still visible to the person who wrote them (they won't know the comment was hidden), but they disappear from public view for everyone else.
What Moderation Assist Can Do
Moderation Assist offers five categories of filters:
Keyword and phrase blocking
You can add up to 1,000 blocked keywords. Any comment containing an exact match gets auto-hidden. This covers obvious spam triggers, competitor brand names, or specific words you don't want in your comment section.
Profanity filter
A built-in profanity filter with three levels: off, medium, or strong. It catches common offensive language across eight languages without you needing to build a word list manually.
Link filtering
Auto-hide any comment that contains a URL. Useful for catching spam bots that drop links to external sites.
Media filtering
Auto-hide comments that contain images or videos. This helps with spam that uses screenshots or promotional graphics instead of text.
Sender-based filtering
Filter comments based on the commenter's profile characteristics. You can flag or hide comments from accounts with no profile photo, no friends, or newly created accounts — common signals of spam or bot accounts.
What Moderation Assist Cannot Do
This is where things get important. Moderation Assist has five significant limitations that most guides gloss over.
It does not work on ad comments
This is the single biggest gap. Moderation Assist only filters comments on organic posts — it completely ignores comments on Facebook ads. If you're running paid campaigns, every comment on every ad bypasses Moderation Assist entirely.
This matters because ad comments are often where you need moderation most. Ads reach cold audiences who are more likely to leave spam, complaints, competitor mentions, or hostile replies. Your organic followers are generally friendlier than a broad targeted audience seeing your brand for the first time.
Keyword lists don't understand context
Keyword filtering is inherently rigid. If you block the word "scam," you'll catch "this is a scam" — but you'll also hide "this is NOT a scam, I love this product." There's no way to distinguish between a complaint and a defense.
Similarly, blocking competitor names creates problems when someone writes "I switched from [Competitor] to you and it's so much better." That's a positive testimonial, but keyword matching hides it anyway.
You also need to anticipate every possible variation. "Price," "pricing," "how much," "cost," and "what do I pay" all mean the same thing but require separate keyword entries. Misspellings, slang, and emoji-based spam slip through entirely.
No replies — only hiding
Moderation Assist is a one-trick tool: it hides comments. It cannot reply to comments, send follow-up messages, or take any action beyond making a comment invisible. If someone asks a legitimate question that happens to trigger a keyword filter, the comment disappears with no response.
This means genuine customer questions can get buried. A comment like "Does this work with [blocked competitor name]?" might be a real buying signal, but it gets hidden with no way to automatically respond.
Facebook only — no Instagram coverage
Despite Meta owning both platforms, Moderation Assist is exclusive to Facebook Pages. Instagram business profiles get no equivalent feature. If you manage both a Facebook Page and an Instagram account (as most brands do), you're running two completely different moderation workflows.
No bulk management or cross-page support
Each Page's Moderation Assist settings are configured independently. If you manage 10 Pages for 10 clients, you're setting up and maintaining 10 separate keyword lists with no way to sync them. There's no bulk edit, no template system, and no way to export or import rules between Pages.
Keyword-Based vs. AI-Based Moderation
The core difference between Moderation Assist and modern AI moderation tools comes down to how rules are defined and how decisions are made.
| Capability | Keyword-based (Moderation Assist) | AI-based moderation |
|---|---|---|
| Rule definition | Exact keyword lists | Natural language instructions |
| Context understanding | None — matches words regardless of meaning | Understands intent, sentiment, and context |
| Ad comment support | No | Yes |
| Platform coverage | Facebook only | Facebook + Instagram (or more) |
| Actions available | Hide only | Hide, delete, reply, flag, like |
| Setup time per page | Manual keyword entry | Describe rules once in plain English |
| False positives | High — no way to distinguish context | Low — AI evaluates the full comment |
| Cost | Free | Paid (typically $20-100/month) |
The practical difference shows up in how you write rules. With Moderation Assist, catching competitor mentions means building a list: "CompetitorA," "Competitor A," "competitor a," "competitora," and every misspelling you can think of. With AI-based moderation, you write one instruction: "Hide comments mentioning competitor brands" — and the AI handles variations, misspellings, and context automatically.
When Moderation Assist Is Enough
Moderation Assist works fine if all of the following are true:
- You only post organically. No Facebook ads, no boosted posts. The moment you run paid campaigns, Moderation Assist can't protect those comment sections.
- Your comment volume is low. Under 50 comments per day across all posts. At this volume, manual review catches what keyword filters miss.
- You only manage one or two Pages. The per-Page configuration is manageable at small scale.
- Basic spam is your main problem. Link spam, profanity, and obvious bot comments — the patterns that keyword matching handles well.
- You don't need to respond. Hiding is sufficient, and you don't need automated replies or follow-up actions on moderated comments.
For a local business Page with a few hundred followers posting a couple of times a week, Moderation Assist does the job. It's free, it's built in, and it catches the obvious stuff.
When You Need More Than Keyword Filters
The calculus changes when any of these apply:
You run Facebook or Instagram ads. Ad comments are completely unprotected by Moderation Assist. At scale, a single ad can generate hundreds of comments — spam, competitor mentions, complaints, and buying questions all mixed together. Without automated moderation on ads, your team either reviews every comment manually or lets the comment section run wild.
Your moderation rules require judgment. "Hide comments that complain about shipping delays, but keep comments that praise fast delivery" is impossible with keywords. Any rule that depends on meaning rather than specific words needs AI.
You manage multiple pages or platforms. Configuring keyword lists per page doesn't scale. If you add a new blocked term, you need to update every Page manually. Cross-platform coverage (Facebook + Instagram) requires a unified tool.
You want to reply, not just hide. Hiding a comment removes it from view but doesn't solve the customer's problem. If someone asks about pricing and their comment gets hidden because it mentions a blocked word, you've lost a potential customer. AI moderation tools can hide problematic comments while still generating a reply — or flag them for human review instead of hiding.
Moderation that works on ads, organic, and Instagram
ReplyZen's AI moderation uses natural language rules instead of keyword lists — and covers every comment, including ads.
Frequently Asked Questions
Does Moderation Assist work on Facebook ads?
No. Moderation Assist only filters comments on organic Page posts. Comments on Facebook ads — including boosted posts — are not covered. This is Meta's own limitation, not a bug. If you need moderation on ad comments, you'll need a third-party tool that connects via the Meta API.
Can Moderation Assist delete comments, or only hide them?
Only hide. Hidden comments remain visible to the person who wrote them but disappear from public view for everyone else. The commenter won't receive a notification that their comment was hidden. If you want to permanently delete comments, you need to do it manually or use a tool with delete capabilities.
Does Moderation Assist work on Instagram?
No. Despite Facebook and Instagram both being Meta platforms, Moderation Assist is only available for Facebook Pages. Instagram business accounts have a separate "Hidden Words" feature that offers basic keyword filtering for DMs and comments, but it's a different tool with different capabilities.
How many keywords can I add to Moderation Assist?
You can block up to 1,000 keywords or phrases. Each entry is matched exactly — there's no wildcard, regex, or fuzzy matching. Punctuation and capitalization are generally ignored, but variations like abbreviations or intentional misspellings need separate entries.
Will the commenter know their comment was hidden?
No. When Moderation Assist hides a comment, the person who posted it still sees it on their end. From their perspective, the comment looks normal. But no one else — including other followers — can see it. There's no notification sent to the commenter.
What's the difference between Moderation Assist and Page keyword blocking?
They're complementary features in different locations. Keyword blocking (in Page Settings) lets you block specific words — any comment containing those words gets hidden. Moderation Assist (in Professional Dashboard) adds sender-based filters (new accounts, no profile photo) and content-type filters (links, media). You can use both simultaneously.
