i totally agree with your comment. i used AU for more than just SL and i'm really disappointed that it was just dropped like this. i can't have an sl facebook because facebook has a policy against "fake people" so AU was my replacement for that. sure it was annoying when people would add you without even bothering to speak to you but it was a place where you could connect with others.
thankfully there are other sl profile sites, which i shall not name here for fear that LL purchases and closes them down as well, but it sucks for the gamers who were in more than just SL.