The account admitted that this is already his third account on the forum, and his two previous accounts have been banned.
I reported this to the moderators, but instead of a ban or some kind of negative label, the moderators simply deleted the confirmation message. There is an archive left.
https://archive.ph/08PO0And the third account sometimes appears on the forum, as if nothing had happened.
Therefore, of course, the moderators can act as they see fit.

Might be a good idea to contact the local moderators for clarification since most English speaking moderators will ignore these sort of reports due to language difficulties.