Some users and I have noticed a few posts here--and across other win pages--have been created by brand new accounts, which will likely never post again. I've seen them called spam, bots, and shills, but the posts here are usually on-topic for this board, anyway. Ones that aren't can be properly reported and presumably removed in good time.
So, is this really a problem? If so, what should be done? This board is essentially founded upon anti-censorship sentiment. Auto-modding is a no-go (I think). If it isn't a problem, I'll ask this in some fairness to those seeing a problem: how much is too much? How will you be able to tell and still be able to fix it? Tagging u/DomitiusOfMassilia. I see you've been removing some days-old posts like these recently. Is there an unwritten rule that users should be participants of their respective communities before making posts?
The potential for infiltration by bad faith actors is always a concern in online groups. The most effective ones will pretend to be participating in good faith. The suspicion caused by these two things is a major goal in cointelpro.
I think the solution is just not getting lazy in the future. Vigilance, if you will.