I’d never heard of “thinspo” before. That one very neatly connects the dots between mainstream worship of thinness and eating disorders. (To save others thinspo is short for “thinspiration” a person who inspires you to be thinner by looking good being thin)
I’d love it if pinterest boards of this stuff didn’t exist. While I have experience with suicide and self-harm generally, I don’t know much about eating disorders and I wouldn’t guess how to tackle the problem. (Aside from generally promoting body positivity.)