"Aaron should man up, take responsibility for his actions, and pay his own bills."
This sounds a lot like "screw you, what you did is wrong, and you should quit whining about it."
"man up" clearly implies that Ed Weissman feels that going up against the massive US justice system to allow people without university affiliation or piles of cash to read publicly funded scientific research is an immature act.
As someone who has been blocked in the past from doing research because of lack of funds to pay the journals, this attitude disgusts me.
EDIT: Let me be absolutely clear that I am not implying that Ed had any blame in what happened or anything ridiculous like that. What I find objectionable in his commentary is his cavalier attitude towards the heavyhanded prosecution of those trying to make publicly funded research publicly available. This suggests a very elitist attitude towards the distribution of valuable public research.