I have noticed the same thing, CDs allowing infractions. And when asked why, the common answers is, we need more contestants and if we crack down, we lose them. We are trying to get more people interested in the hobby.
I don't agree with it, but what can you do?
We really do need more people interested in the hobby, but the "park flyers" aren't helping the situation. I've seen some very dangerous activities in the school yards and parks by people who are unlicensed and uninsured.
I am afraid that if this activity continues, we will all pay for it through governmental legislation. And the only way to stop it is for communities to stop allowing RC flying in neighborhood parks and school yards. I know it seems like a drastic measure, but if not controlled, we all will pay for it soon.