As a user, you would get 10 votes to distribute among the features you want. You could put all 10 on your favorite feature, or split them evenly among multiple features. This would allow you to ask more "loudly" for features you really want.
Once a feature is marked as complete you would get an email stating that it is done and your votes are free to use elsewhere. Then you could go back and place those votes for that completed feature elsewhere, to your next most favorite features.
Again, this allows features to be prioritized not just by the number of people that want them, but also by how important the features are to you.