Slower traffic in the right lane, faster traffic in the left lane. I agree, and adhere to that convention. As Texas custom dictates, I yield to faster traffic whenever its appropriate to do so.
However, if you're in the left lane going just as fast as everyone else in that lane, and merely maintaining a safe following distance from the vehicle to your front, the collective speed is at least the maximum speed limit, and the right lane is full of significantly slower moving traffic, screw any icehole who wants to drive a lot faster and tailgates. In that example, its the tailgater who is out of line.
Don't get me wrong, I have no problem with anyone who wants to drive very fast. I do so myself when in my opinion its safe to do so. On a completely open road, I will drive as fast as the vehicle I am driving is capable of doing safely - in some cases, cruise control set to 115-130 mph.
But when there is a significant amount of traffic within relatively close distance to each other in BOTH lanes, the speed that the preponderance of traffic in the left lane is moving is the speed I drive at. If you tailgate me, you place me and any passengers in my vehicle at risk. I will therefore take steps to see that you back off - up to, if you ignore more polite warnings, tossing a handful of pea gravel from the sack I carry for that reason out of my window.
Tailgaters are more dangerous and equally as onerous as folks who won't yield the left lane to faster traffic. I hate both types, but am prepared to take stronger action by far against tailgaters.