Originally Posted by IMH

I also got the Hilton invitation, a couple of weeks ago, and deleted it because I was already a member. Now I'm not: I left because of the problem discussed here (Delta miles are worthless to me now and they will no longer let me redeem for AA or Continental). But now the e-rewards website is giving me the cold shoulder:

Thank you for your interest in e-Rewards. Currently, we are not accepting requests to join our program.

Unless they're tracking IP addresses and have just temporarily blocked mine, I wonder if this means too many people are trying to do the same thing...