Long story short, I have some spam issues and currently I have this problem solved by installing the BBCode Permissions addon that hides any links from the Registered group. Once users from that group reach 10 posts they are upgraded to another usergroup and the links/media will show. While this is an ok-ish approach, legit new users can post anything and I'd wish to change that. Basically I thought of adding the nofollow tag to every link posted by new users and once they're upgraded, remove the tag. In this way, the links will always appear and spam links won't harm the forum.
Is there a function/add-on that does that?
Also if you guys have better solutions, please, I'll owe you one.