Crossing double lines is something I've never done intentionally in 51 years of riding and I don't condone the practice at all.
But why stop at crossing double lines.
What about illegal use of bulbs for our lights, illegal positioning of spot/driving lights, illegal number of spot/driving lights, illegal fitting of external fuel tanks, speeding, ...Lets not get into an argument about degrees of illegality, all of the above could have dire consequences for us and oncoming traffic.
Come on, who wants to throw the first stone. And why not throw it on a more appropriate forum.