I've never seen this site before until now. So I took a peek. I didn't join, but just looking at the description on the front page, it reminds me of another Facebook. If this is what you want ... go for it! Me... I prefer to keep my 2 cents and my anonymity about myself. I don't use Facebook at all, but my wife does, and I growl at her all the time for putting too much personal information out there! She has finally quit posting and just reads now! I think she understands my concern now.
If used the right way and the way it's intended for, looks like it might be a nice site. But not for me!