One of the admin mentioned that most complaints are either from or about the same poster.
The solution is clear but for whatever reason they don’t want to take it, which is totally their prerogative.
In the meantime you can either ignore or engage with him.
I don’t have him on ignore because I think, as trolls go, he’s quite entertaining.
I recognise his style, so assume he had a different name in on the old board, but can’t quite think what that was.