I wish there was more interest in developing on top of the tent.io protocol. Open and distributed should be the goal for the next phase of social networks.
The developers behind it have a weird preoccupation with preserving all your content forever. For example, if you edit your Tent profile, people can still get all the old versions and see info that you deleted. And last time I checked, not only was this the default behavior, there was no way to opt out of it, either. And they claim this is a feature but nobody I have talked to wants it.
I also followed the Tent software's development for several months (initially I was extremely excited about the project). It broke frequently and progress on making it do what it was supposed to was slow. Plenty of features were promised ("we'll implement X next week") but never delivered even after months.
I don't think the developers really understand the problems social software solves, nor do they have a clear idea what their own project does and doesn't do (they seem to think everything should be a Tent.io app, which is crazy), nor are they particularly good at shipping. I've moved on, personally.
It seems that it's supposed to be distributed, but there seems to be no easy way to find users that are distributed.
Currently it's email-based discovery, but other services using OAuth could conceivably be added.