As a shrink, I don't find any evidence of insanity in what he wrote . . . or even in what he did.
Irresponsible to a degree in several aspects but not totally.
Careless and perhaps self destructive in terms of his risk taking but not abnormally so given this era and his generation.
Rebellious more than slightly but that's at least average these days.
He had something of a Robin Hood mentality. Given all the givens, that's even pretty understandable.
I agree that the complicit errors on the gov side are serious. But I'd prefer to see the senior puppet masters tried for treason than the troops on the front lines.
But that won't happen. They will run the world for a limited time . . .
and then God will make an object lesson of them. Thankfully. But the suffering and blood letting in between will make the inability for seniors et al to pay for fuel look like a relative non-issue.
I don't find anything insane, but the defense he is presenting is similar to that of insanity.
I didn't read anything in his report that one couldn't glean from open conspiracy theory and UFO/alien threads or old USENET logs.
Accordingly, if somebody asked why he was hacking, given the primary CT of UFOlogy is to present a coverup in wide open, covering up something so secret that nobody can figure out if its true or not, even casting doubt upon those within the institutions reportedly associated with the CT, then his story is a fairly well contrived defense.
In other words, he found a defense that is unprovable but commonly accepted by a significant percentage of the public.
He may have been attempting to determine launch code sequences and convey sensitive information to enemies of the Constitution, yet, by claiming he simply was looking for UFO CT verification, he's viewed as a harmless, perhaps stumbling idiot.
For a real enemy, that is just the type of perspective he would like his target to believe, once his activity was compromised.