Come on now, these examples are not even remotely similar to what you are doing here.
Firstly, it's up to me whether or not I even create a profile on those sites.
Secondly, if I choose to create a profile, I have full control over what is shown publicly.
What you are doing here is making information public whether I like it or not. This is not OK, and you trying to defend it here is mind boggling, and demonstrates clearly what little regards you have for privacy. I for one will now never have anything to do with TripleByte.