bear in mind that weev's an awful poster child for this. he's a known internet professional troll and has made a lot of enemies in the past few years through his actions. ISTR he'd probably been under investigation for a while and this is what stuck.
as noted elsewhere in comments in an article about the event he laughed that what he was doing was probably illegal, suggesting knowledge of a likely crime.
i'm no fan of an absurd application of laws, but there have got to be better poster children for this sort of thing.