Its like muting someone yelling at you over the phone, or putting the phone down on the table and grabbing a soda while someone goes on a monologue rant that you don't care to hear.
Sometimes it just feels good.
My list is empty, but hasn't always been. Its a tool to use sparingly to allow you to enjoy the forums. Some people make consistent comments that just make you mad. So don't get mad, get ignorant