I've read the whole post twice, so I know what every one's written so far.
But the main thing is : Why dont you make 1-3 little sentences what is allowed on a certain track and what is not? Its like work for about 1 minute. Everybody will know what is allowed and what is not. Just clearify it before each race with 1-3 sentence and FSR doesnt get this discussions its so easy to avoid it.
And only by saying "its in the rules, read it" is ok, but its just heating up people. In the real F1 they also have a drivers briefing before each race and they know exactly where they are allowed to go wide and where they are not, why dont make it here too with only 1-3 sentence, work of 1 extra minute? Thats just very simple. No one wants these discussions and thats an easy and fair way to avoid it. Its just an idea from my objective view here, im not forcing someone
1. Don't cut
2. Don't crash (in to other people)
3. Don't do what Donny Don't does
Ok, to be serious for a second:
I think if we put up some small hints of what you can and can't do, people still wouldn't read about them. There is a lot of stuff in the rulebook that can't be known just by thinking with "common sense", you need to read it to see what to expect.
Like a lot of people have pointed out, this rule is very old. I've only been here since 2008 but I got to know it very fast in my rookie year (not because I cut but because I read the rules and asked questions from the race directors back then).
I guess the point is that you should never assume to know what is right, just read the rules and if that doesn't clear things up then ask questions from your race director.