(I don’t know how it works for others, but it has always been atrocious for me. Their server is over 200ms away, and even with uBlock Origin blocking ten different trackers it takes fully 35 seconds before it even begins to load the actual image, and the experience once it’s finished is significantly worse than just navigating directly to the image anyway. Tried it in Chromium a couple of times, 55 and 45 seconds. Seriously, imgur is so bad. Maybe it ain’t so bad in the USA, I don’t know, but in Australia and in India it’s appallingly bad. You used to be able to open the image URLs directly, but some years ago they started redirecting to the HTML in general if not loading as a subresource or maybe something about accept headers; curl will still get it directly.)

Not to mention every screen is different, so whatever changes you’re doing, even if they looked right to you in the moment, would be useless when you sent your image to your computer for further processing.

Oh, and our eyes can perceive it differently too. So now you’re doing a ton of work to badly change the colours of an image so they look maybe a bit closer to reality for a single person on a single device.