The problem of too many

After the submission period for Wiki Loves Monuments ended with around 5800 pictures from Romanian contributors, it was decided to leave the uploader working, so the people wanting to continue posting pictures with monuments have this shortcut handy. But something happened, the form was not edited enough (don't look at me, I am not an admin) and it continued to leave some categories on the pictures' metadata and even after the contest formally ended, we continued to see the uploads increasing, the following couple of days and they climbed to over 6000.
While this is cool and dandy for Wikipedia, for the Romanian culture and for the project gathering continued contributors, is not that good for the contest itself, we had a number of pictures to deal with somehow.... not manually, since the tools are not that great. Being away for FUDCon, I missed the opportunity to signal the problem in due time, my colleague was away too, so quite a few pictures piled-up.
But never is too late, yesterday a bot started working, cleaning the categories for some 270+ pics (yes, that awesome are our contributors), we are back to 5767 pictures for the contest, to which there may be some uploads from Flickr to be sync-ed and about 152 pics from the organizers to be removed. So we are looking at well over 6000 pictures as a result of this campaign, with around 5700 of them eligible for the contest.