What I'm worried about is that if someday people start paying less attention to this user, he will change the OP by inserting malicious links.
I consider most ICOs, Defi en NFTs scams waiting to happen, designed to grab money from naive greedy people for the creaters, and move on to the next one. How is this guy any different?
What's more, all threads are set to self-moderated (as most scammers behave). So far, there is no self-disclaimer that confirms the identity behind this account and its role and rights.
Are there any rules for this case?
As long as there's no plagiarism, all this is allowed.