I don't see the big deal. He wants to do an "experiment", let him. If you don't want to participate, don't. It doesn't make anyone look any better than he by attacking him. If anything, you (general) look just as bad, if, indeed he is a troll or whatever you all call them.

At first, I was all like 'what an idiot' because it pissed me off he was trying to call people liars. I sat back, thought about it and realized, what is the big deal? I know I don't lie, so I'm not going to get all huffy and puffy. I think those who are getting all riled up are either insecure, or want to prove something, what? I have no clue. If anything, just ignore him. Why stir up anything? I never understood that on message boards. I guess people are bored, and want entertainment.