Suspecting People Creating Accounts to Be Rude or Praise Their Own Posts

I swear, only because, I have seen multiple instances where new accounts where there is like 1-3 posts like within the same 1-3 hours (then seemingly no more) seem to be made to be rude to other posters or praise their own posts/ideas (made within that same 1-3 hours).

Is this consider rule breaking? Can posts with what seems like a create to be rude post then activity stops, could have the rude posts deleted (if if not complete hate rude)? I do not want to post the examples here as there may be possible innocents, but I am highly skeptical all are innocent.

But I noticed toxicity towards other users increasing, and reporting seems to not be helping. I'd like to keep this community healthy and happy.

If a Moderator could PM for actual details—if they wish to investigate.