The contest that provides the photo of the week has been very successful. A large number of entries have now accumulated. There are 114 right now. This large number is split over 4 pages, each of which load slowly. It also makes it difficult to look thru everything easily.
However, the real problem is that our current algorithm is unsustainable. One picture gets removed every week, but entries are coming in at a faster rate than that. Without a change in the algorithm, the number of entries will keep growing indefinitely.
Even worse, the average quality will go down. If one good picture gets removed every week but bad ones never do, then clearly there will be relatively more and more bad ones over time. As far as I can see, the only way for a picture to get removed is for the owner to delete the entry. It seems that happens so rarely as to be essentially never in this context.
Any entry that is at least 6 months old and has less than one vote/month on average should be automatically deleted.
Current leaders are in the 25-30 vote range, having been in the contest for 3-9 months. Let's be realistic and realize that any entry that has only received 6 votes in 6 months isn't going to ever be the picture of the week. If that's all a picture can do in 6 months, it's time to cull it out and move on.
To clarify how this algorithm would work, let's say the dead pictures are culled on the first of every month. On 1 December, any picture with 6 votes or less submitted in May or earlier would be deleted. For 7 votes, April or earlier. For 8 votes, March or earlier, etc.
It's time to clean up and keep things clean going forward.