I can understand that using images willy-nilly in articles to which they bear only the most lateral of relationships might well give rise to a real problem, and I have no argument with the idea of removing such uses.
However it would appear that some people are taking the argument to rather silly extremes. I have just discovered the school of thought that believes that including an image in a category contravenes the "Fair Use" principle because displaying the image on the category page amounts to using the image in an unfair way!
Is it me, or is this just plain silly? A category is simply an organisational tool, not an article. Surely a case can be made that the proper categorisation of images within an encyclopedia is essential to using those images correctly.
I was under the impression that ideally, **all** images should belong to at least one category, depending upon their licensing status. Obviously there are those who disagree.