Listen - all I did was post a link! I wasn't "making a point" or supporting either camp, assuming there is a divide here. The only divide I can really detect is between those who think the club/no club thing is a big deal, and those (like me) who don't think it is.
If you like getting involved in the big scale stuff like running places like Snailbeach, securing cave entrances through purchase like SWCC, or dare I say it, opening the Reigate Caves like WCMS, then you join the groups that do it. If the things that float your boat don't require joining a group to get what you want, then don't! ::)