How to block spam for posts, not comments.

Hello,

My website, tourneycore.com, is a site dedicated to helping people find e-sports tournaments.

I allow them to register and make an account and they are allowed to make public posts on the site. I have user registration set to anyone can register. Some people are signing up and then they make spam posts that appear publicly on the site. All I can really do is let the post go through then handle it myself later on.

I was wondering if there is a plugin that would help moderate post spam. Kind of like a flagging system. Users would be able to flag spam posts and then it would be automatically removed.

Another idea would be if the user had a previously approved post and could continue to make posts. Then I could not approve the new spam posts so that those users would lose the right to post publicly. Kind of like the built in comment moderation with wordpress.

If anyone has any plugins similar to these that would be great!