If the likes of 4chan or reddit attack a federal prosecutor personally, all they will do is spur political action against reddit and 4chan. The underlying cause of their action will be ignored and forgotten.
(Note: SOPA is not an exception; major Silicon Valley companies spent serious amounts on lobbying to get that bill dropped. The internet opposition had exactly zero impact on its political fate.)
Identifying the tactics used to effectively strip people of their rights to open trials is the object here. Juries exist specifically to guard against abuses like this. If the DOJ has found a way to make getting in front of one exceedingly risky and certainly ruinous, then they should be called to account for what is a clear subversion of basic Constitutional protections.
We can't get Aaron back. But we can make sure that everyone understands why he found himself in such a desperate situation in spite of having done nothing to warrant the insane penalties he was facing.