The protest being waged by popular subreddits over Reddit’s API changes continues, and this week it’s taken a NSFW twist.On Monday, r/pics — a massive community with over 30 million members — officially marked itself NSFW (not safe for work), meaning Reddit is no longer able to show advertisements alongside posts appearing in the subreddit. SEE ALSO: Reddit bids farewell to third-party apps like Apollo, BaconReader It’s the latest iteration of a protest that started in mid-June, when 6,500 subreddits took part in a blackout to protest Reddit’s plans to charge for API (application programming interface) access. Redditors are angry about the Twitter-like changes, which have now led to third-party apps like Apollo — which couldn’t afford the fees — having to shut down.Since the blackout, a number of large subreddits have continued to protest Reddit’s changes in a variety of creative ways. r/pics opted to go down a very John Oliver-focused route, first only allowing images of the comedian and Last Week Tonight host to be shared on the sub and then amending their own rules so that any media featuring Oliver – including erotic fan fiction – could be posted. Featured Video For You A former Reddit CEO is turning arid land into robust forests. Here’s how to scale it globally. A week ago, r/pics moderators shared a post discussing the level of profanity in the sub, reminding the community — via a very tongue in cheek “open letter” — not to swear in their posts, lest the…Reddit's API protest just got even more NSFW