From what I remember of my OpenID provider search a few months ago, not all providers have chosen to support delegation. Google doesn't support it, but myOpenID

From what I remember of my OpenID provider search a few months ago, not all providers have chosen to support delegation. Google doesn't support it, but myOpenID does (I went with the latter, then never used it again). But it's not a "screw up", it's a (questionable) policy decision.