There was some NSFW stuff early on. There was a communist flag on the left side, under which was the statement "bash the fash." He-Man had a rainbow in his mouth like he was giving it a blowjob for the longest time, and all the nsfw stuff suddenly disappeared at the end. I highly suspect that moderators and bots took over by the end and made it come together, and I bet it was a PR move to amplify a sense of community.
Bots definitely did take over, and it's how communities left their images so preserved. A lot of subreddits had scripts they gave out to users to just run in the tab. I think this kind of ruined the joy of logging in after a few hours of being gone and seeing something completely different in an area.
Not sure how a communist flag (stayed on till the end, by the way) or "bash the fash" is NSFW. Unless your workplace is fascist, of course.
There are many corporations who find any form of violence NSFW, especially among places with overly sensitive PC culture.