I think Aaronson's dismissive attitude is unbecoming and disrespectful amongst colleagues.
'Unrelated Update: To everyone who keeps asking me about the “new” P≠NP proof: I’d again bet $200,000 that the paper won’t stand, except that the last time I tried that, it didn’t achieve its purpose, which was to get people to stop asking me about it. So: please stop asking, and if the thing hasn’t been refuted by the end of the week, you can come back and tell me I was a closed-minded fool.'
Quick-copy pasting a Facebook comment as reason not to want to deal with it, betting a large sum of money almost tauntingly is not good scholarship.
A serious researcher made a serious effort to solve a problem. Say you have not verified it and don't want to comment.
It almost seems like he does not want P/NP to be proven because he has made a reputation by becoming an authority on dismissing attempts.