It's the opposite for YouTube, I think. (Brace for an essay, because I can't summarize without going off track... /:D )
You'd write a comment that says something dumb like: "Look at this video about a little girl and her dog getting 'McGangbanged' (gives link to a Clash of Clans edit that can go eat dirt)" or "This video about a woman crying about her dog dying is so funny, here's the link (gives link to that exact same video)." There are people out there (we'll call them bots for now because that's all they act like (yk?...): comment copypasta, get thousands of likes (somehow), and never reply back to any questions) that would bombard a singular popular YouTuber and then use their signature copypasta for ragebait and somehow get tons of likes, even though no one with common sense would ever like the comment!