DNP listing requires artist to verify account here and contact us directly. It’s also regularly checked and updated, so a “do not repost!” on an image from 4y ago may no longer apply (and there’ve been enough cases where it explicitly doesn’t). Furthermore, many of the generic DA and Tumblr “Do not repost” comments are often about reposting to the same site without credit, which is common there.
If someone is so upset about “racist bronies” and “gross bigots” on this site, they should A: Contact us to express their derision of our persons directly, and B: Get off Tumblr, because boy do I have a surprise about their userbase for them…