Just a few observations from today and some food for thought.
When your supervising children swimming at the beach and a bunch of kiters doing a downwinder come through, it is hard to determine if they are in control and their proximity to the swimmers is quite unnerving even as a kiter.
Doing top turns right in front of a surfers face as he is trying to paddle back out?

In terms of public relations and respect it's not really that hard to just ride out behind them in a straight line so they know where you are going then come back in downwind of them.
You've spent all season weaving between the children at the local beach, how are you going to defend your right to access to the beach when they try to ban us?
You lose your rail on a top turn, too bad to the surfer that was 1m downwind of you.
Easy to become blase over time, but maybe just think about how your actions might be perceived by others in the future.
P.S. Yes I have no problem letting the person know if they are being are douche.