I've never seen myself in rage mode; I have lots of self-control, at least physically. I'm not a neanderthal.
Hmmm, maybe it's because I'm able to get my frustration out in a healthy and harmless way like RANTING ON AN INTERNET MESSAGE BOARD instead of beating someone up; what's more, my posts aren't even threatening in any way, shape or form. Some may offend your (in the second person) sensibilities, but I don't threaten people or anything. Furthermore, people who do threaten others make me laugh, because as soon as someone lays a finger on me, I'd do my best to make sure they'll never walk again. I guess that would be my breaking point, when someone attacks me. But then again, THAT'S NORMAL.
Of course you were being facetious, and I think we'd get along fabulously in person, but just for argument's sake let's say someone just up and punches me for no reason upon meeting. I would end that person with no remorse. People like that shouldn't be allowed to be part of modern society.
It's like anonymity but with feedback...I can control how close I want to allow people to get to know me. I see nothing wrong or strange about it. I mean, that's kinda why message boards were invented in the first place.