The way his apology post was so completely memory-holed on TBP kind of surprised me.
Nah. It's because of the association with legal action. They don't want anything to do with that. It was the same on bodybuilding.com. There was a guy who livestreamed his overdose suicide, the thread contained such gems as "do it phaggot". The mass killer Elliot Rodgers posted there under the name SupremeGentleman. And the forum developed an obsession with an underage instachick, "would plough, don't care what age," which made the news. All this and more, threads deleted - but all "soft delete", keeping them backstage out of public view, because one time they did a hard delete then got served by the FBI...
I was a mod on bodybuilding.com for a couple of years. I was demodded and shadowbanned (where you don't get a ban message, but just can't post or PM any more) with no reason given.
A big forum, it's all the same. Just like a large corporation and a government department have the same kind of obstructive bureaucracy. It's just people in large enough groups, and small stakes making for nasty politics. Same shit, different shovel.