I'm just curious - what was the main reason, that you started/stopped using a social network (like Facebook, Twitter, reddit, etc. ... and at last but absolutely not least - also Hubski ;-))? Friends, family (their opinion, their usage), trend or just out of curiosity?
Also, did you ever create profiles on social networks, just for the plain reason that your username you use elsewhere won't be taken there? To be honest, I did so on reddit.