Disturbingly, the hashtags #proana and #promia are commonly used on by social media creators to identify pro-anorexia and pro-bulimia content. By Heather GallowayContributor Mon., April 18, 2022timer3 min. read A quick search of Twitter, Instagram or TikTok using the hashtag #thinspo reveals a deeply troubling corner of social media. Pro-eating disorder (pro-ED) communities are well established across these platforms and pose a serious threat to the mental and physical health of young people.