Earlier quoted context omitted.
Well, he might be right here and there, but he's still being an assohle, and it's not the first time we see him acting as one (I'd wager it's his most recognizable trait). Being right and/or smart and/or recognized doesn't, and shouldn't, give one an excuse to be a dick.
I don't think he's being an asshole, he just has the gift of being able to phrase his opinion in a way that makes people that disagree with him feel really bad. It's not being an asshole to tell someone they're being stupid when they do something stupid. These guys just lost several million dollars via their illicit drug-trading website. They don't need a pat on the back from zedshaw.
I'd agree if he limited his mockery to those people, but his comments are full of broad generalizations and target also honest people with ideas different than zed's.
I don't even say I agree with those ideas, though I find the concept of crowdsourcing law worth serious exploring instead of dismissing outright (there are some serious people, like Robin Hanson, discussing this [0]). It's easy to laugh off things you don't understand.
To be honest, I'm yet to see a single case of a person who truly understands an idea and then proceeds to sneer. For me, seeing one laughing at other peoples' ideas is a clear sign that the person doesn't know shit.