It would be very useful (at least for me

if I had the possibility to exclude some categories from the "Most recent", "Most commented", "Last commented", "Random", ... views.
I'm running a curated photogallery. Pictures selected by the curators are sorted by categories (eg. "Architecture", "Portrait", "Street photography", ...) and those categories are of course for everybody to view them.
But the rejected pictures are placed in a "not selected pictures" categories, to help curators to see what have already been submitted and rejected.
Of course, I don't want those picture to appear in the views.