Some people have a distinctive "style", & a new user name doesn't diguise them for long.
On a sports page I used to frequent, a high profile, very opinionated, & agressive member (rather like Wuerstchenhund, in fact) abruptly changed his username. (I'm not sure why, he never seemed to have problems with the Moderators).
It took a couple of postings before everybody knew who it was!
This forum's moderation is far from harsh-- In the sports forum mentioned above, if you didn't agree with the narrative they were trying to push, your posting was likely to simply disappear!
On the "Whirlpool" forum, there are some "bad words" which guarantee your post will be deleted.
I innocently used "fan boy" once, & bang!------My posting was gone!
Also, if you deviate slightly off topic, even correcting someone else who had already strayed & got away with it---bang!
Maybe I'm paranoid, but I do feel both of those forums "play favourites"----EEVblog shows no sign of doing so!