Yeah it's the road ragers that really make it dangerous. Sure brake checking may technically cause an accident but if the person behind was not driving like an asshole then there would be no accident.
Also, to add to what I originally said (and this is more as a reply to others who are saying the same thing, but your post is more succinct and also fresh)...
It's a mixed bag. Yes, tailgaters are assholes. But, people ignorantly sticking to the left lane when they need not, they are also assholes.
I'll fully admit: I've sort-of-tailgated, flashed my brights, even used my right signal on and off a few times to try and ignite a sudden flash of memory in the slow drivers poking along in the left lane while the right lane remains completely open.
I like to avoid passing on the right as much as possible. So, if it appears safe and I am feeling patient, I'll try and encourage a little recognition of all those driving guidelines they received in school and quickly forgot upon passing the stupidly easy driving test.
But to defend myself, it isn't something I do often. In the past I did it more often than not, but I've grown to accept that idiots will be idiots and force people to make dangerous passes on the right, and so I've just proceeded to pass on the right but extra cautiously. Such a bad blind spot on the right - I despise it, but idiots make it necessary when they're poking along and the right lane is completely open.
Hell, just today, I was merging from one highway to the next, which merges in the left lane for now thanks to construction. So, I look to my right, see what appears to be a clear left lane. I turn my head and look, sure enough, it's clear, but I'm wary of a car in the right lane. And then, after looking ahead to make sure I won't rear end anyone, I look to my right again, and that car is now in the left lane. And, get this, there's nobody ahead of her, her lane is clear. She's passing nobody. If I hadn't basically triple-checked, that could have been bad. The bitch made a bad lane change endangering merging traffic for no reason. If it was changing from left to right lane and I was merging on the right, I'd have more patience for that, as small mistakes about ignoring merging traffic is to be expected, as truthfully, the merging traffic must yield to the current traffic. But even then, you have to still be mindful and do what you can to ensure everyone is safe. But doing the opposite, what I experienced, was just reckless and totally ignorant of safe driving.