<p>Unfortunately, that's a side effect of the transition. Our old software vBulletin didn't actually deleted PMs when you hit the delete button. In the conversion over to our new platform, the "delete" flag on vBulletin wasn't something we could transfer over so in lieu of risking having any PMs disappear, you get them all! But don't worry, there are no PM caps on this software so you won't hit a limit.</p>