I obey the blue flag rule, but I refuse to jeperdise my track position just to let someone who's a bit faster than me past, so I wait until a straight and just ease off the gas, then draft them to keep my speed
I was on that server aswell, people do whore it out, I mean the big blue message is enough, but then they go flood the comment box with "BLUE FLAG MOVE".
It's one of racings unsolvable problems...unfortunately, and moaning and whinging isn't gonna solve it one bit.