I'll be grumpy and say I'm surprised of how fast it reached first position on HN. However, I have to agree that there's a huge difference between deleting an email and opening it :p Great idea, good luck with it.
"By the way if anyone here is in advertising or marketing... kill yourself." - Bill Hicks<p><a href="http://www.youtube.com/watch?v=gDW_Hj2K0wo" rel="nofollow">http://www.youtube.com/watch?v=gDW_Hj2K0wo</a>