Don't be so sure about that.
The forum settings require mods to approve new members.
Guys like sam break the rules, beg to be let back in, bring the douche on again and eventually you just ignore them and they go away to quiet failure.
There are a select few who earn a true perma ban.
Not sayin sam did or didn't. Just saying that a true perma ban is a true perma ban.
Certain returning members ( see Ig ) are allowed back in because underneath it all we see that they are cool. Certain are allowed back because of pity, and others perhaps as shark bait. Some are just given multiple chances, and they fail. Yes, some may return via devious means but the identity always becomes known by the character of the content they offer. I mean, I smelled a rat in jswanson day one and the insider trolls know that to be true.