"Are you sick of emails that say 'thanks' or 'sounds great' and other pointless ones that you really didn't need to read?"

I never want to work with anybody that has that attitude. You don't have to time even READ (let alone politely respond to) a "thank you?" But, I bet you have plenty of time to read and respond to everything on digg, reddit, slashdot, news.yc, and facebook.