I've got to say the deletion of this chain of posts is one of the stranger ones I've come across. Sure there was the one guy who kept going on and on repeating the same pitch for too long, but plenty of others with varied PoVs got nuked too. If memory serves even Alorth got a post deleted ... and he's a member of the Dev's team.
Meanwhile, I've observed threads practically choked to death because posts on "what is or isn't an appropriate background story" in a game is allowed to run and run (e.g. Reunion, Long Road Home), even though it involves only a single character and pretty inconsequential to the story as a whole.
Harem discussion specifically ran on ad nauseam in the A.O.A Academy thread even though it was just a footnote in the Dev's goal. For TFtUV, it's the stated end-game. How it is defined in this game, how it comes about and the potential interpersonal dynamic therein is pretty much relevant to the:
Anyhoo, I'll leave it there.
PS: Regarding moderation as a whole,
botc76 has a few threads in off topics people can search for.