He just asked if your the SolidCoin guy, nothing else! He didnt ask for ur Realname, Age, Creditcard or whatever!
The denial to talk about the relation of you and RealSolid just prooves that you are it (simple logic!). Someone would only deny this if he knows his Name/Others would be known trough RealSolid. Therefore u just proved that u are RealSolid.

After all i dont care about who you are, all i want to tell you is: there is no reason to hide this! hiding it just makes PPCoin more shady. Be a man and stand for ur mistakes!