I was thinking about social networks that is not Facebook. The challenge is to make something that can compete in this respect. It would be so nice to have the in-person part, but without the ads, scams, data theft and blackbox algorithms!
I suppose, if we reduce this problem to it's core - the question remains - who pays for the servers? That's the reason we don't have a idealistic web platforms - or am I wrong?
I run my own instance at home. Not everybody can do this, but if more nerds hosted instances for friends and family, it would get us somewhere at least :)
The goal is not instant world domination, but a organically grown network, providing an off-ramp for those that have had enough and are ready to take some action. Facilitating real world meet-ups would help, I think!