You can't refute me, but that's beyond the point. You're free to not answer, nobody's holding a gun to your head, but obviously it's retarded to make claims and then not back them up. Anyone can do that. In fact, you do that all the time: can't think of anyone who does it more often. I think if you're being honest with yourself, you're just afraid of not being intelligent enough to do it so you make up excuses both to yourself and to others, seeing as you're very concerned about what others think of you.
Anyone who's not borderline autistic can see the irrationality of your excuses.
"You're a communist."
"How's that?"
"Uh, yeah, I could tell you why, but I'm like, not interested. Even though I cared enough to call you one. But I've totally lost interest now."
If you are not interested in conversation, what is the point of posting in the first place? Unless you have a severe case of narcissism and just enjoy the look of your own posts, that doesn't make sense either.