No it isn't. If I want to call the poster a fuckwad, I'll call him one. The only reason I linked the comic is because it may not be common knowledge to everyone where the 'theory' is from.
Then you're just poisoning the well with a bit of ad hominem (in a pretty stupid way), saying that someone else's opinion is wrong because they're anonymous when you're anonymous yourself.
That's the name of the 'theory' while it does imply that they're a 'fuckwad' (whatever that may be) it's not my chosen word to call them, I'm just citing it. But go ahead and defend the unnecessary rudeness and hide behind your throwaway account. I'll make it clear: The OP of the comment is being an asshole/fuckwad/douchebag/<insert word conveying sentiment here> by being needlessly rude due to the anonymity provided by having an online pseudonym.
Whatever it is, it's worthless.