On reading the ratings page and on checking this user's strange edits on changing the rating system to "explicit" because of middle fingers or "Twilight Sparkle having wings" (which is weird; might be because of "wingboners"), are featureless crotches, innuendo, and vulgar language, even considered "safe"?
I'm not that prudish or trying to reform the site's rating system, or anything, but these things are questioning me at the moment. It makes me question if big breasts without nipples are "safe" or "questionable"...