Probably don't need a lot of them yet, their need grows with the size of the community. Get into the millions and they become 100% necessary to preserve basic function of your sub, otherwise conversation gets splintered into a bunch of mini threads and dies off from lack of engagement, because mini threads suck.

But, draft. SuperbOwl run-up. That's about it off the top of my head.

Don't want too many early on, because there's a balance where you want people making threads, so the community gets more exposure. Though I guess this sub probably won't suffer from a need for exposure, now that I think about it. But a little more can still be nice to boost growth early on.