Being one of these 'internet' swingers I think I can at least speak for some of the less active crowd.
Now while we wouldn't go into a room to watch (that would be rude), we are not into the 'sex club' concept either. We view clubs as a place we can relax, not worry about people thinking we are swingers, and a good place to meet other couples. The internet may make it easier to find swingers, but its a pain in the ass finding good ones. Hence going to a club lets us meet other couples without the fakes/email games.
I've seen this lament for the last two years about the 'good old days' and I can understand how the new swingers are somewhat frustrating, but we are different in our desires. We are looking for friends, and 'private' sex in our homes, and in the long run this is good for swinging I think. The more people involved the less stigma attached and the less some local government can be a pita come election year. The all naked rule is probably a good one for people looking for old time swinging. I wouldn’t mind but I KNOW my wife wouldn’t do it.