The body positivity movement is an asset that Instagram seems reticent to put forward as the resource it is.

Emma Shapiro
Emma Shapiro is an American artist and activist based in Spain. She is the creator of the international body equality project Exposure Therapy and is the Editor-at-Large for the Don’t Delete Art campaign. Her artwork can be found on her website and at @exshaps.
Free the Nipple: A History of a Hidden Movement
While court cases have helped to shape this movement from the 1930s until today, the social-media landscape has generally remained deaf to calls for change.
Facebook’s Censoring of Women’s Bodies is Nipocrisy
As long as Facebook and Instagram maintain a policy that female nipples are offensive and male nipples are not, they get to decide whose bodies count as valid for public viewing and whose bodies don’t.