You something else that'll be pretty cool to teach the AI to do? Being able to detect and report recycled posts.
This happens to be one of the rising menaces on the forum, mostly from some users who have attained a reasonable rank on the forum and is currently participating on a signature campaign. They end up recycling and reposting posts they'd already previously posted weeks/months back, just to complete and meet up the required posts in order to get paid.

They often indulge in these silly acts due to laziness and inability to come up with reasonable and constructive contents.