You're constantly looking for things to complain about or ways to prove that you know more than others. If you don't like it don't read it. Or better still, put up a video of your catty shooting, demonstrating how it should be done.
I have no problem with BPR he shoots vermin with his catapult, and a very good shot he is. What I do have a problem with is people shooting game out of season. Mugging a Mallard in moult or popping off some half tame pheasant out of season is not really the pinnacle of ethics is it? To be honest it does not really require any skill as they are semi tame and you can walk right up to them, not to mention the fact that it is illegal.
BPR in his videos shoots pigeon and rabbits non of which have a season, he has worked hard to get where he is shooting a catapult wise, many many hours of practice and it has paid off for him. That said, if he went around shooting out of season game with his catapult I would say the same to him.
That is my position, if you don't like it. Tough!