Should messy diaper pics be tagged with scat ?
I’d say no, because it’s not actually about a scat fetish, it’s about used diapers. So I’d leave the scat tag to images where it is directly visible (including diaper pics with exposed scat).
In that case there are quite a few images to get tags fixed I guess. There might be a few hard to decide cases, but I think it’s the best solution.
‘Scat’ for scat fetish images/exposed scat in diaper images, and ‘poopy diaper’ for just messy diaper fetish images.
So scat people don’t get diapers, and diaper people can filter ‘scat’ if they don’t want to see exposed stuff.