Why are you so obsessed with his identity? He writes what he writes, that's what matters, and you can react to that, agree with him, disagree, get angry, be amused, laugh out loud, think he is full of shit, has good points but doesn't know how to make them, whatever you like. How is his real-life persona relevant?
Anyway, if you're that curious, it took me all of five minutes to find out who he is, and so could you. He likes table tennis, does that help you in judging his postings?