It's an intriguing concept, but when you get right down to it peer-to-peer social networking has existed since the birth of the internet.
It's called email. Or blogging or texting. And while it's true that it isn't truly "peer-to-peer" in the non-social networking sense, it does satisfy one major issue people have with Facebook and Twitter: it doesn't go through Facebook or Twitter.
yesterday Friday, Feb. 24, and for the foreseeable future, my Twitter presence is vastly scaled back. I've protected my account and unfollowed almost everyone. Follow requests will be considered on a case-by-case basis, but those I was previously following have a better chance of being approved at an end.
Meanwhile, this site remains open to the general public. Anyone who wants to read what I post here is welcome to do so.