If we learned anything from reddit, it can make misinformation appear true. Correct statements can be buried if people don't like them, and bot vote manipulation can effectively silence whatever the bot makers don't want to be seen.
www.socialsamosa.com/news-2/x-dow...
And it has the effect of burying sarcasm because people who take it seriously downvote it. So the only jokes you're left with are puns. If people see an already downvoted comment, the hive mind thinks "oh, I'm not supposed to like this"