I was having the same bitching session with a mate of mine just last week.
I'm subscribed to a lot of the same services Jim mentions - and more :/ (If my main PC wasn't out of action atm. I would write a little list to highlight the ridiculousness)
It's damn annoying.
You want a quick game of SF IV on PC? Sign in to Steam. Oh, and GFWL too please. Wait, though!
Capcom needs to make a proprietary network too... then I could sign in to three different networks before I get to play.
Also, quite funny when Steam goes down. Or GFWL. Or both.
And with funny, I think I mean 'retarded'.
Meh. I don't think companies realise that not all of us are super online-social either.
I don't sign in to Steam because I want to use it's vast network of friends and stats. I sign in because I have to. Because I bought a game there and it requires Steam.
Same with all the other networks I'm on.
Stop adding proprietary networks and random software just for the sake of it.
Also, I can see these various networks are going to do nothing more than split up the user-base more and more, which is counter productive to a healthy gaming community.