I don't know how true his disabilities are, it seems f**cked up for someone to lie about being disabled, but it's entirely possible, some people are just like that, if such was the case, then ATB was a classic example of a "Troll" and deserved everything he got.
And if it was true, then yes, maybe it was a little harsh, but he was given warning's and he knew how people felt about what he was doing, and rather than apologizing, he continued to do so, and even considered it *revenge*, again, he brought it on himself.
