Reddit recently came under fire for running an advertisement for whitedate.net, which is a dating site for white people.
Reddit pulled the ad and apologized, saying that the ad never should have run.
The advertisement promotes that the dating site's members can "Be Part of the Trad Revolution that has been evolving in White Communities Where Masculine Men Court the Feminine Woman With the Explicit Objective to Continue their Lineage."
We do our best to enforce our ads policies across both direct and programmatic ads; but in this case, a promoted post that was in violation of our ads policy was mistakenly approved
http://adage.com/article/digital/reddit-ad-racist-trad-revolution-dating-site/313011/