This would be great for those of us like me who don't get a PM but once in a blue moon. I hardly ever even look at the little PM notification, and often forget that it is there. Several times I have seen I had new messages by accident, only to find that they were then monthly old and irrelevant.
For those that do get tons of PMs, maybe an option under their Account screen could toggle the feature on and off. I for one, would love to have something like that active, though
![Smiley: smile](http://zam.zamimg.com/i/smilies/smile.gif)