But how do we figure out whether we will be targeted?

If you read through recent posts, you'll see that some people didn't get their email telling them they qualify for this promo until this past week. I still haven't gotten mine, but I registered for MULT0 (based on a misleading writeup in InsideFlyer magazine which made it seem like MULT0 was open to everyone). Now I don't know if I'm going to get an email tomorrow, or next week, or three days before the promo ends!

If someone gets an email this week, does that mean they were only trargeted this week, or just that the email got sent out late?

The thing is, I have to make decisions soon on hotel stays. I was going to credit a bunch of upcoming stays to AA (at brands where I have to choose which airline to credit at reservation time), but now, if I can't confirm that I qualify for the promo I already registered for, what's the point? (The regular miles I'd get at these hotels are puny, so it's not worth asking for AA miles at these hotels unless this promo is going to work for me.)

I don't understand why AA would make a promo that is targeted that starts September 1 and yet (a) allow anyone to register with no indication of whether you were targeted or not, and (b) send out email invites to people over a month after the start of the promo.

IMHO if AA wants to target promos like this, they either shouldn't require registration, or they should send a unique registration code to each person, or they should have the registration process tell you whether you qualify or not. The curent method, being none of these, is a total mess.