I’ve been watching mprep (I think) battling spammers posting a virus in altcoin mining at the pace of 1 post or more per minute for the last few hours.
I think you are wrong about mprep doing it. (although I don’t belittle his activities on the forum in any way).
But I remember yesterday and in the altcoin section there was a lot of spam from newbies related to Phoenix Miner. I've been watching this spam for quite some time now.
And while these newbies were being banned, mprep was completely absent from the forum:
https://archive.fo/BglogFor example, here is a recent spammer ban:
https://ninjastic.space/search?author=Woweny&board=160 who posted his shitpost in the evening and was immediately banned.
As far as I understand, absolutely any forum moderator can ban such newbies, and not just the one listed in the forum section. Therefore, it could have been done by any of the moderators who were active at the time.