[yesfitz]

Exactly so. If I'm going to do anything with it later, I'll have to read it again anyway.

It's self-culling with time. I've got unread messages deep down on the list. Things that I wanted to do something about months ago, but never did, and they weren't important enough to come up again. And if they ever do come up again, I can see that I received a message and didn't do anything with it.