

And also just websites compressing images without the user getting any input. A meme that goes from Facebook to Twitter to Reddit to Twitter to Tumblr to Reddit to here will likely be compressed every time it gets reuploaded. Most social media sites use some form of image compression.
And it obviously doesn’t help that artefacts from compression are multiplicative.
“poop knife xDD hehe”
There’s so much actually great content posted across reddit over the years, it blows my mind that people decided that was something that needed to be mentioned all the time.