Dude, first Vala and then you with the Dumbledore-as-Harry's-grandfather thing. Did someone try to assert this over at SQ or something?

Well, it's utterly ridiculous. JKR herself said so (http://www.jkrowling.com/textonly/en/rumours_view.cfm?id=2), albeit in a somewhat cryptic manner. But that's par for the course for her. :)