Yep. And familiarity with Reddit/subreddit memes and inside jokes. And entire subreddits devoted to parodying styles of comment which are utterly earnest on oth

Yep. And familiarity with Reddit/subreddit memes and inside jokes. And entire subreddits devoted to parodying styles of comment which are utterly earnest on other reddits which I'm not sure how you'd even begin to classify...