Juice? Really? I've read something about his deliriums of grandeur about being some big shot lawyer or some crap. What I dont know is why is he so important that people keep quoting him in particular as opposed to hundreds that are legitimately crazier (but I assume less famous).
Here's a good primer on Cernovich: https://storify.com/stillgray/matt-binder-nails-gamergate-based-lawyer-mike-cern
tl;dr? Cernovich is the "date rape does not exist" guy.
He's done more threats of legal actions (where there seems to be no solid basis for any legal actions to be taken) and general grandstanding since that storify was created. His latest escapades include him drawing comparisons and parallels to "SJWs", race, and the events in Ferguson: https://twitter.com/SJWIlluminati/status/537124441084669952
So, like I said: Juice selling seems to be his only positive contribution to society.