I was thinking last night the only way to properly build a unified community yet not run out of servers/bandwidth is to make a singular messaging system with si

I was thinking last night the only way to properly build a unified community yet not run out of servers/bandwidth is to make a singular messaging system with signed authentication checksums universally distributed and if you want it to remain free and open you have to put your money where your mouth is by everyone buying their own servers and bandwidth. Not quite Mastodon, more unified singular like Reddit where it is seamless integration and frictionless BUT every user/post is authenticated by a cipher signature and everyone runs their own server pulling down the newest updates every minute. At most it would be minute behind? Maybe best comparison is the old FidoNet with the forum backbone, I forget what it was called. More like usenet? But where there are independent owners of each subforum that can cancel/delete messages officially (of course people can still sift through the deletions unofficially) Spam is the biggest problem but ultra-fast lightweight message cancelling is the answer to that?