You'll notice a button for "Purge All" at the bottom of a list - depending on which view you are in (Index/Received, Saved or Sent), this button will remove all the messages in that view. The exception is in the Index where it will not remove messages you have not read yet.
Pretty soon I'll be adding more code to enforce PM limits for non-supporters; when you reach 100 PM's, you will be unable to receive any more PMs until you clear out your box.
Site Supporters will not have a limit imposed at this time. However, keep in mind that the more messages you have the slower these pages can be to load - I had 4,441 in my PM folders until I did some Purging and the pages load much faster now (went from several seconds to .02 seconds).
It would seem we have just one user who has over 9,000 PMs and more than a few with a couple thousand. I've put the 100 PM limit into place for non-site supporters; to accomidate the mailbox hog, I've set the site supporter limit to 10,000.
That's absolutely stupid. 9,000 PM's. There is absolutely no purpose for having thousands of saved PM's. What? Are you savoring each private moment you had on the alley? Reading your PM's over and over?