Honestly, agree. I find the niche subreddits are nice because they are still very human, in terms of both users and mods, but once they get a bit bigger it just gets destroyed by new users and bots.

Problem is there are no niche subreddits anymore, there are no walls between subreddits at all. Reddit runs on a modern algorithm where any individual post which scores well will be shown to the whole site regardless of users individual subscriptions.