I'm considering installing an instance of status.net's open source microblogging platform on my own server/website. From what I gather, status.net is open source, user owned data, and a decentralization movement of the web- like ostatus.org
However, I need some clarity. If I install status.net on my own server and run it on www.xyz.com/mircoblog , doesn't that mean I need users to come to my site, create their own profile, and start posting; therefore, I control their data in my database and I'm the responsible party?
Isn't that just centralizing users to my site and the same thing as twitter and facebook?