This is an old post, and I'm sure HN will take down the site, since my app engine quota levels are way lower than they used to be. Just to fill you in, I've gone to other projects and haven't had time to keep thathigh up to date.
I had some pretty notable twitter followers, including lindsay lohan, snoop dog, bill maher, doug benson, sarah silverman, and a few others. Still hanging in there at 12k followers, and I absolutely must give a shout out to CrowdBooster (I used them a lot to get so many followers).
At the peak, the site was paying my rent in SF. It doesn't really make any money anymore since I've neglected it.