I would rather you start handing out warnings/bans to people who keep timelooping. A subforum dedicated to autistic infighting about m'lady's honor would only serve to attract bad posters here like flies to shit, and that toxicity would inevitably spill out of that subforum to the rest of the site. You could play whack-a-mole trying to contain the spergery there, but the end result will still be users segregated to different subforums with animosity towards each other. A house divided against itself cannot stand.
Not that I'm a kiwi historian, but isn't there a lot of controversy around A&H's mere existence, and a lot of hatred towards the people who post there, especially from Null? That's the vibe I got whenever I saw it brought up. I think you'd see the same thing play out here: it'd become an autism vortex, everyone would hate it, and the quality of the site would drop. I think it's a healthy thing that we're able to call each other retards if we disagree on something, but this hypothetical spergatory would be tacitly encouraging us to go at each other's throats over stupid shit like "why Gura no stream?" or "is Call really that fat?" which would quickly go beyond simple shittalking into full on tribal autism. Remember one of the key reasons all the (main) discussion is packed into one thread is to force us to get along and prevent infighting. Having a place on the site that does the exact opposite will sabotage that effort.