There's a line between saying things and posting multiple youtube videos threatening to ruin someone's life and "look in" to their kids. That's a threat.
All in all, he is not the most sympathetic of figures, but it doesn't mean the government gets a free pass.
If I say, "Jim is a dirtbag, I'm going to expose him and his whole dirty family," what have I done? It sounds like I'm just an investigative journalist with delusions of being good at my job and who probably has a personal grievance with Jim.
I happen to not be a fan of the individual in this case, but it's important to be realistic about the whole business of threats against reputation.