Ability to sort collections by number of posts per user and interleaved by user. (contest-related)

Currently a lot of users who joined this month are spamming stolen ideas in the contest collection therefore there is an unfair bias towards the already high rated images and lower rated image ideas are lost in the spam.

Therefore please make it possible to sort collections by increasing number of posts per user and interleaved by user. That way images from users who spam will be on the bottom, while users prioritizing work on a single image are shown on top!