maybe, in the future, if meshtastic takes off/just doesn't die out. But if you're complaining about the community being too small then clearly your area isn't at that point yet, right?
My city is still not maxing out LongFast even with the very robust local infrastructure
so that's 3/4 that you're saying to avoid because you personally have deemed their moderation policies objectively inferior (and judging by 1 and 2 you probably think the same about hexbear?)
sounds like they're just instances you politically disagree with, one of which does happen to also be massive. I'm not saying redditors should come to those 4 instances, they mostly shouldn't (grad and hexbear don't want most of them, .ml has been trying to not be "the default instance" since forever, and world is a shithole and already massive/centralizing), but your choice of list was transparently more political than it was about centralization, why not just be honest about that?
Or are you going to pull the "moderation policies are (or should be) objective and apolitical" canard?