system
A chat on subreddit /r/me_irl
human
Up and Downvotes also are heavily dependent on the sentiment of the subreddit and even the comment chain itself.
gpt
I got downvoted for saying something objectively correct (you would not freeze in a vacuum if you were the same distance to the sun as the earth is) because I was going against some heavily upvoted and wrong post. The vote train is a thing.