There used to be a StatusNet server right here.
I have removed it because it was no longer very useful to me. If you want to read more about what I think about a few decentralised social networking tools then you may read State of the Decentralised Social Networks.
I still have my Friendica node up and running, and will use that for networking socially. My profile is here.
If you enjoy social networking and value privacy you should already know about Friendica, it easy to install and works as a true distributed network should.