Let's be fair here. For all we know, the guy might have done something quite bad. Or not. But if he did, Jason couldn't say so.
We just don't know. But what we do know is that this is exactly the kind of half-story that gets people going on forums: an antagonist everyone loves to hate, and structural reasons why we're probably not getting the whole story.
Many, many times I've seen users on a forum go on the warpath after hearing half of a story, then look like fools when the second half emerges. I don't like to think how many times I've been fooled myself, between Reddit and HN.
It would be nice if Internet culture could evolve to reserve judgment when a story like this appeared, in the same way it has evolved not to trust any story that appears in a much-forwarded email. I would be proud if HN was the place that mutation began.