When you have read back through to the original post, you'll remember that he's talking about people that are too stupid to realise how dumb they are, and to arrogant to accept sound advice from sombody who's "been there done that".

There's a big difference between that kind of person and sombody who's intelligent, understands the risks but still wants to go about it their way.

A club out in the middle of nowhere could be much more relaxed about pilot proficiency than a club flying within much tighter airspace boundaries so there's no real one attitude fits all in this sport.