Als Antwort auf Benjamin Nowack.

Du hast natürlich recht, es steht ja auch so im Blogpost:

While we failed to convince Ian that RDFa merited a mention in the HTML5 specification, we were able to convince him that the problem was important enough for him to go to the trouble of creating a solution of his own.

Danke für den Hinweis, ich hab den Blogpost entsprechend angepasst.