It's a developmental issue that prevents the person from being a normal human, so it's retarding their lives. The IQ may not necessarily go down the shitter as with the crayon eaters, but at the same time the autist is still a cross wired freak of nature that should never be given internet access. Autism is never an excuse for being a horror show either, as a piece of shit remains a piece of shit whether he's a human or an affront to God.
In that particular deviant's case, going by his handle alone tells me he's circling the drain at an IQ of 70.