Well, maybe. I'm just skeptical and feel that people have more of a tendency to isolate their islands rather than connect.
And once the disconnect happens, it's difficult to reverse.
Maybe I'm wrong. Guess we'll see.
On the other hand, there's the advantage that if one finds "their own" instance, they are free to speak out their mind, while in the big melting pot there's always a risk of offending somebody by just being a little edgy. Whether that's actually a good thing...