But we can, or not, encourage it. I'd rather not. I've never - not even once in more than 30 years online - seen a forum get notably popular without it also, and obviously as a direct result, going to shit.
The great thing about the fediverse is that people have control over which instances they are around, and there will always be some more isolated ones if that’s what you prefer.
If the masses discover the fediverse and move here, that's not going to remain the case, guaranteed.
They'll bitch and moan because content isn't centralized (we've already seen that), and the rent-seeking fuckwads will, one way or another, rearrange things so that it is centralized, and specifically so that they can then squat on top of it and suck profit out of it, and it'll end up just another facebook/twitter/instagram/reddit.