How to prevent spam posts?

[sam (Sam Saffron)]

Install discourse-ai and enable the anti spam module per:

Discourse AI - Spam detection

This guide explains how to configure and use Discourse AI’s spam detection feature, including the setup process, scanning criteria, classification logic, customizations, and contrasts with AI triage. Required user level: Administrator This is now default turned on for Starter and Standard customers Discourse AI provides an efficient spam detection feature that identifies and flags spam posts with minimal configuration. While designed for simpli…

If cost is an issue I recommend you use the free tier of Gemini 2.5 flash which will do a great job with spam handling and prevention.