I certainly never said that speed limit plays no part in the equation, but I believe that safe speed for a given combination of vehicle and road and traffic conditions is much more significant than the legislative limit.

Your question works just as well when the example is reversed: if someone is blatantly disregarding lane discipline, why should I expect them to drive safely in any other regard (and why wouldn't I try to put as much distance between me and them as possible)?

200mph vehicle in this case is an asshole if: a) she doesn't slow down and leave a safe distance between you and her in order to let you finish passing b) she otherwise creates a dangerous situation from excessive relative speed, which would probably be the case most of the time if she's going that speed around other traffic

Both alternatives are equally common, either you slow down to 60 and let the 200 car pass, or you stay in the overtaking (maybe speed up a bit of of courtesy) and let the 200 guy slow down. In my experience the faster usually has higher priority unless the traffic is very heavy, because by going faster they also disappear faster and don't hog the left lane for as long as someone overtaking at a slower speed.

I don't understand why people want to pick fights with other people while driving. A person traveling way too fast is clearly does care about acting dangerously, why the hell would you want to aggravate that person? The best outcome is nothing happens, the worst outcome is your death.

Plus, if you're blocking these people, you're also preventing them from getting a speeding ticket.

Back before speed cameras, it was useful to aggravate such folk, just a little, so they would speed up. If you gamed it right, you could set up a little convoy, and sit in the middle. At night, you would watch for brake lights ahead, and flashing lights behind.