forgot to respond to this, sorry!
honestly i’m for the %shitty% original versions being saved alongside the upscaled versions if possible
for what its worth i don’t know anything about your process for enhancing images or how refined it is, though i generally have had a good experience with free AI models when upscaling artwork myself for personal use, so i’m not against upscaling as a concept (keeping in mind the limits of the technology)
i just mainly feel like entirely replacing a source image with a modified one hurts the booru as an archive, sure there’s some low-res art that are literally just crunched up .jpgs that got tossed around the internet too much, but there’s also art that could be deliberately made at a lower resolution. would it be a good idea to upscale and entirely replace something like that?
personally i dont think so
but if source images can stay then upscale all the images you want tbh, i’ll admit me calling for disallowing them is a bit much if we can just have both
and if anything, keeping the originals around also has the benefit of allowing for better upscaling in the future as software keeps improving
