Our Discourse site has lots of bots replying to user posts telling them to contact ‘live support’ etc. We want to stop this. However scammers are able to create accounts easily, and our spam filter doesn’t pick this up. The dodgy links that users post are all linking to different domains, so it’s very difficult to implement a domain/keyword based filter.
Instead we want to disable users from posting links if their trust level is too low. How can we do this?