I guess the owners of 500px are watching this play out with a bucket of popcorn: http://www.theverge.com/2013/1/28/3924148/hardcore-porn-climbs-to-the-top-of-vines-editors-picks Last week, Apple pulled the 500px app from the App Store simply because you could search for NSFW images. Being a photography site, artistic nudes are the norm. However, these are curated by the site and fall under their definition of "artistic". But Apple thinks any nipple is porn. Vines is Twitters new video sharing app. Twitter is very closely entwined with Apple -- besides the persistent rumors that Apple is intent on buying Twitter, it's baked into iOS6. It appears that users intentionally or accidentally tricked the algorithm into pushing a porn clip as an Editor's Choice (the title and hashtag confirm it is porn and not something puritanically construed as porn). Either that or there's an editor at Vines who loves porn. In any case, a lot of people are waiting to see how Apple responds to this. Even if they change the way clips are ranked or selected as Editor's Picks, Vines can be used to search for "inappropriate content", the exact thing 500px was shitcanned for. Josh Topolsky first wrote about porn on Vines on Sunday in the article entitled, "Apple has a porn problem, and it's about to get worse". Less than 24 hours later and it's gotten worse.