There are going to be some great videos that for some reason or another get stuck in a personal queue. If a video manages to make it out of a personal queue it would have no chance of making the top 15 no matter how good it is or how many votes it makes as the top 15 is based on Queue date. I think that if a video manages to make it out of a personal queue it's date for the purposes of the top 15 should be reset.