After being on the board for quite sometime, I will choose no notices at all because I do go in and scan questions a few times a day anyway.
This is an interesting idea and I'll talk to the rest of our team about it.
In the meantime though I have a suggestion. When you write your answer you can uncheck the 'Email me when answers to this question are posted' box and instead sign up using the 'Get email alerts' icon under the question. If you use that icon instead you can choose the daily alert rather than the instant alert.
I hope this is a decent solution for now.
Customer Service Representative