Lol. Seems that my experience has been the opposite of yours. With Dreamhost I have always (so far) had an answer within 12 hours. So far I have waited 9 days for conformation of my account closure from E2.. and that is with multiple emails to chase up my request!
I find the different levels of service that people get from the same host perplexing.
I think it's nice that E2 support Pixelpost and that Pixelpost recommends them, however it's only fair that people have a fair picture of their service.