Topic on Talk:Personal image filter

Please use the existing category system. Any categories which are not already needed to describe [images, articles] do not belong on the projects. Filter by category, not by image. Thank you.

For instance: when loading an image for the first time, get both the image and its list of categories, run a string match in the client against the list of reader's 'disliked categories', and decide whether or not to show. the wikimedia cache system could start caching all category data along with image/thumbnail data. Why would that be hard? Notsuohs 20:02, 30 June 2011

This post was posted by Krinkle, but signed as Notsuohs.

I think the filtering categories must be a separate category tree, otherwise we end up with the requirements of filtering dictating the category system on Commons, which is a large imposition. Having a few super-categories that can be protected from editing (ie vandalism) that images are individually assigned to (rather than cross linking into the existing category tree), is the most workable idea, and won't add endless reversion wars to the current category system. --Tony Wills 10:30, 9 August 2011 (UTC)

This post was posted by Krinkle, but signed as Tony Wills.

That doesn't work. Categories cannot be protected as far as I know. What you are describing is a list, not a category in Mediawiki parlance.