My vision would be that someone comes home from a job, has gained good sats, looks to his server and says: well I have a good job so I can pay my server maintainance costs and not worry. The users of those sites also have to work and also gain sats. If someome fails to run the server, someome else will step in and use his hard earned sets to give others the possibility to communicate via his server.

The real costs is earned by everyone in the real world, leaving the internet a free in freedom amd free in beer, space that you can visit.