Gang, I just had a funny idea
What would happen if a bunch of people made AI Poison blogs with just like... art and writing that's all kind of bad and wrong. Old art you hate because it's wonky as all hell, paintings that are deliberately kind of fucked up, images with Sweet Bro and Hella Jeff jpg compression, writing that's My Immortal levels of literary. All very dilligently labelled with descriptions and tags saying something that's close-ish to what they are bad depictions of; "cute anime girl", "fantasy castle landscape" etc.
And then had those as ones with AI scraping turned on, and everyone agreed to reblog only those posts with accounts that have it turned on.
You know... if they're going to scrape Tumblr, make them wish they never had. Make it poisonous to their models. Also it sounds funny.