In other words, all the truly smart people are too smart for Mensa, so it's probably a waste of your time. You don't want to signal that you are smart enough for Mensa; you want to signal that you are too smart to care about it.

I am reminded of Kieran Healy's description of Mensa, "the organization for highly intelligent people who are nevertheless not quite intelligent enough not to belong to it."

It is second-order statements such as erosophe's and Healy's that signal real intelligence. ;-)