SatanHimself said
Because I am Satan. Himself.
Well, you either are, or you aren't.
If you are, your behavior on this forum as far as I know hasn't been all that Satanic.
If you aren't, what is the point of averring that you are?
Then there's the problem of what "Satan" is.
My best guess is that you are making an atheist anti-Christian "statement" about the symbolism Satan by attempting to deflate and deconstruct it through the medium of your cheeky, devil-may-care (pun intended) insouciance reflected in your name and deportment thereby.