Reddit moderators and users protest CEO's policies with massive subreddit blackout

Some subreddits that historically prohibited porn are now allowing NSFW content as a protest against Reddit's API changes and to prevent the website from monetizing these subreddits
Reddit usage metrics show that the recent protests against CEO Steve Huffman's planned API changes had a definite effect with daily visits to Reddit dropping steadily as the protest unfolded.
Redditors are protesting Reddit's decision to charge money for API access by flooding some major subreddits are with photos of British comedian John Oliver instead of regular content.
Reddit CEO Steve Huffman is in a feud with volunteer moderators over the website's decision to charge for third-party access to its API which could change the way Reddit interfaces with the rest of the open web.
Some subreddits have classified themselves as NSFW to protest Reddit's treatment of volunteer moderators with non-porn communities now getting a lot of porn due to this switch.