Other things worth mentioning:

That time when the top post in the sub was a link to someone saying they liked Duke Nukem Forever, an almost universally panned game, simply because their post was in response to someone else saying something negative about NMS.

Conversely, someone saying Overwatch, a universally loved game, is overrated is a circlejerk (not to mention that the post itself is massively downvoted)

Then there's that person who mods a NMS fan subreddit but still spends so much time hate reading /r/nomansskythegame that they can make multiple posts a day about the latest mean (and always completely unwarranted) things they're saying about the game.

There's a lot of really fun shit here (particularly from /u/aaaaarrrrggggg), but there's also a lot of "someone said something I don't like about videya gaem I like/dislike, better post about it on /r/gamingcirclejerk."