I don't claim to know what form this information should be in - a posting at the track, an explanation to new drivers. To myself, it's common sense.
A few times I've simply pulled my car from the track in frustration - it really can ruin your mojo getting hacked four times within a single lap. Moreover, some drivers honestly don't realize what they are doing.
There is a distinction, I think, between good driving and good etiquette - they are two mutually exclusive notions. I'm not the best driver, but I always make a conscious effort to respect line ownership and position, it simply results in a better racing experience for everyone involved.
We all know a couple of the most common violations:
1. Car behind you is over powered and tags your rear quarter and spins you out because he overshot the apex. This guy doesn't know what the term "lift" means!
2. Same car, in front of you this time, overshoots the turn and has to go wide (again, no lift), you duck under to excape this menace. Then at that moment, he realizes, when you are a half car length ahead of him, that he wants "his" line back. Uhhh, not your line anymore...you gave it up when you drove off into oblivion.
3. C'mon, I'm ready to lap you - can you throw me a bone?