Nah, Reddit is still a platform. Yes, one that is intentionally divided into sections that feel like small communities, but still a monolithic platform just like all the rest. That's why I'm not there anymore.
Not really on ActivityPub either at the moment, I think I have an account on one of the big Mastadon servers but I'm kind of over that whole interaction model. Considering putting up a blog of some sort that federates, cause I do miss telling the whole internet my opinions on a certain level, and I think we do need that global connection web, on some level, to continue to exist. But the infrastructure can't belong to any individual man, or even be under any individual man's control. Or a few men. That's the biggest problem that needs to be solved first, in my opinion.
edit: I mean, even if we posit your Reddit comparison, wouldn't you agree that Reddit does a better job at moderation than Twitter or Facebook, and that that comes down to having more human moderators making moderation decisions? That seems like a fairly uncontroversial take, to me.