Admitting that you have a weakness has always been taboo, if for not other reason than than it gives people a way to attack you. If people were all nice, then

Admitting that you have a weakness has always been taboo, if for not other reason than than it gives people a way to attack you. If people were all nice, then it wouldn't be a problem. But there are far too many opportunistic jerks out there to not worry about exposing your vulnerabilities.