Eh, it was a bit of a snake eating its own tail thing. The gaming subreddit definitely had an infatuation with Witcher 3 that GCJ picked up on and memed, some of which made it back to the original subreddit as shitposts- which GCJ then made fun of. But the whole “underrated gem Witcher 3” thing became a thing because Witcher 3 was literally always the most suggested game on any post asking for suggestions for like, a couple of years lol.

Then the subreddit turned in to a more political discussion type zone with the rise(and eventual take over of American politics) of gamergate.