The thing that holds me to Facebook is that it's become the town square for my local community. It's where people go to discuss the community's political challenges. So many important dialogs about local issues happen on Facebook, and it's the only real way to be a part of those conversations. Things like zoning, planning, city and county budgeting, ordinances, and so on. If I leave, not only do I lose the ability to…
There are so many variants that could be done off of this too. A federation of these servers, as towns help one another balance and archive data. Or help communication between towns. I'm sure a discussion somewhere like HN could quickly improve on this idea in a way that would be robust and easy to implement (because a key thing is that we want to get small towns to be able to implement this)