If I were to guess, I'd assume he means that everyone who originally signed up for this league should be messaged via the account they signed up with on HF Boards, or whatever. Essentially, we want to confirm that all the teams will be filled prior to the release of the game.
I generally don't check out the forums on the weekend so I missed a bit of this discussion. I'm still very much in. I'll probably grab my copy on Friday. I'll send an invite out as soon as I can. I've got San Jose.