I've specified my email and it says it's already registered for receiving daily updates to answers received but I never get emails. Checked my spam box / filter also.
The answer is simple:
your account has no email address in it, so therefore we cannot possibly email you.
If you want emails, enter an email address.
edit: ah, I see you have a duplicate registered account, with an email, from Feb 9 2009 at
I have merged that into your main account.