I dunno, I can see where he is coming from. Hell, the other day I was going 15-over in the far-left lane on a crowded highway and someone passed me ON THE SHOULDER! Actually he had to pass a couple of other cars before getting back on the highway-proper. Plenty of things you see drivers do everyday can be aggravating. IIRC, Flux lives in SanFran which I suspect has a mountain full of crappy drivers compared to my little suburb,
Small, petty, venting can be "helpful" in many ways, heck we've seen Flux rant here a few times about bad co-workers and customers. Hell, I've thought about getting a dash-cam and posting pictures/videos of people that piss me off in traffic.
Like the countless numbers of people who don't know how to make a left-turn on a solid green/flashing yellow, merge onto the highway, or how to not run a red light.
That's quite the low bar for behavior you've set there, Trekker. "Hey, as long as you're not some crazed sniper firing from a tower, anything goes." Jesus Christ, man.
He's posting videos of drivers that tick him off and commenting about them, I think he's in the clear when it comes to reacting to minor annoyances. Now, if he took their plate number, used civic resources to find the name of the driver of that car and then plastered their name, plate number and make/model of their car with the video. Then he'd go to far. As it is now, he posting videos of dumb people.
Seems like a pretty benign thing. If he has the time/resources to do this what's the harm. It's a venting procedure that works for him.