I never understood such curiosity and why people do that. I for example included links in my signature what I want to share with others, and I for sure don NOT want others Googling my name and showing on public if I am registred somewhere else. If somebody asks me if I have account somewhere else on place I did not put in signature, thats ok, but if it was asked by someone who is not really close friend, I would still wonder why was it asked. Bottom line, people should not try to search about people they don't know much because it is really disrespectful and of course not share on public forums what they found, expecially not on forums where the person in question is registred, that makes no sense :/