I get annoyed with it too, but are they really fucking bothering you that much? Get your shit straigh, most times, they do not snake you. When they do snake you that is dangerous and obnoxious so I can understand the frustration there. But really? Someone jumping off the side, does that really impact you that much? As long as they aren't getting in your way then it shouldn't matter. I know it packs down the lip, but so do you when you hit the feature. Thats why you have park crews who are supposed to maintain the lips. Really, it is not a big deal. Chill out, have some fucking fun and stop worrying about what other people are doing.
As for the policy, that's fucking stupid and I highly doubt that is actually a thing.