While I have seen some interpersonal conflicts at the people level I have not in my 9 years of experience seen it at the club level. Not that I have not heard criticism of how a shoot was run or that a certain venue was not user friendly but club A does not like club B and does not support their efforts. Criticism by individuals of shoots, handled with respect, is ok, IMO, but shooters that go on a rant and rage are not.
Maybe I live in a bubble, maybe I just don't hear it, but I have sat around the fires of quite a few clubs from California (my home) to Louisiana without experiencing club to club issues. Having said that, your four points are good and your advice is good!