If you're referring to phoamslinger's suggestion, I believe that he was testing the waters for a public Iron Tapestry Tournament (the last one held, a decade or so ago, was only for RBDM members).
What is the Iron Tapestry? It's a massive Iron DM Tournament with each entry intended to develop a shared world with the other entries. It's ambitious, but very entertaining.
If this kind of thing would interest anyone, you should definitely speak up, because it's not worth starting if you can't get a field of 32 contestants (like I said--ambitious!). Although, come to think of it, I think that last tournament might have been a field of 16 with a double-elimination format (it was definitely double-elimination).