Anti Spam Recommendations for Forum?

[awesomerobot (Kris)]

We have a guide that may help here:

Tips for Preventing Spam

This documentation provides a comprehensive guide on preventing spam in Discourse forums, and includes information about various settings and tools designed to help maintain a spam-free community environment. Required user level: Administrator On most forums spam is rare. However, if you’re having problems with spam on your site, Discourse comes with numerous tools to help you automatically prevent spam. The following guide offers some recommendations on how…

A couple specific comments there may also be helpful:

Tips for Preventing Spam

One very useful regular expression is \d{3}-\d{4}|[\w+\-.]+@[a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+ which blocks email addresses and phone numbers. Don’t forget to enable settings - posting - “watched words regular expressions”.

Tips for Preventing Spam

We’ve seen a number of clients hit by large spam attacks lately, and what they all had in common is that they opened up one or more categories to everyone - create, bypassing all trust level restrictions. For seasoned Discourse admins it’s obvious that this is a bad idea, but for less experienced people it’s not. So it might be a good idea to state the (for us) obvious and add this to the start post of the topic.