No established site is going to want to use that for its authentication system. They don't want to make it easy for you to log into sites other than their own.
Re:Why Hasn't OpenID Caught On?
by randallsquared on Tuesday January 08, 2008 @05:02PM
(#96134)
I thought Yahoo did accept it?
Mostly, people don't have a problem with using a username/insecure password. They want stuff and don't care much about security. Although I agree that if Google, Yahoo, MySpace, or one of the other humongous sites accepted it, that would spread the word much faster outside of the geek echo chamber.