As with many leading social media websites, trends and fads often spread among their users and we see a shift in the content posted. With only 15 staff, Instagram encourages users to flag inappropriate content.
Instagram have disabled the use of the hashtag instaporn. If you search this hashtag now – no photos or results display.
However, users who have misspelt instaporn to instapron still have a few photos up that are rather suggestive. You can see instapron photos here.