I had the same problem some time ago. I never received my initial password, and when I entered my email address into the "Forgot my password" form, it said that the email was okay and the password on its way out. Never reached me. I did send a private mail to a higher up, but never got a response.

Everything worked fine when I registered my current account (using a different email address). So I am thinking it has something to do with the email provider, that the mail somehow got dropped. The one that did not work for me was @users.sourceforge.net (which I sometimes suspect at losing emails, but maybe I am just paranoid, all the test emails I sent myself were delivered without problems). Did anyone have trouble with SF.net emails?

Question to the higher ups: Are there many user accounts created that have never been logged in to? Should those maybe be reaped after, say, three months?