I have a problem with Diaspora that it doesn't add anything useful to the concept of social network. For an end user, it's basically Facebook/Google+, but worse

I have a problem with Diaspora that it doesn't add anything useful to the concept of social network. For an end user, it's basically Facebook/Google+, but worse; it doesn't really try to engage user. When I register as a new user on Facebook or Google+, it is constantly trying to engage me, trying to somehow connect me with new people. If I log in to JoinDiaspora, I just stare at empty screen and my two inactive Diaspora friends, which is exactly what I saw 1 year ago when I tried it the first time. There are no user groups, no way to actually DO ANYTHING on the site. The fact that the main joindiaspora hub it's still invite-based doesn't help things. Edit: Oh, I just realized I can search for tags on joindiaspora. Only that it does take about 30 seconds for the results to really start showing; first, I see just empty screen. I realize that making social network is hard, but diaspora to me still looks like very early alpha.