Key word here is "smaller". Anything works on a small-enough scale. In general, subreddits are very balkanized, with a strong echo chamber effect (downvotes for

Key word here is "smaller". Anything works on a small-enough scale. In general, subreddits are very balkanized, with a strong echo chamber effect (downvotes for dissenting opinions) and terrible moderation. For any reason at all, dissenters can be put on a list to have their posts quietly hidden from anyone else.