PV is going to have a hard cap of 10k users. I think that will be enough to support a self sustaining community.
After that, I'm going to just help people set up their own instance or recommend other instances to follow.
I want the fediverse to grow to the point where it is second nature to replicate.
That's the beauty of all this. We can great an environment that encourages growth rather than 21st century tech fiefdoms.