It's shocking on many platforms. I can't find a citation but I swear I read a study (or small experiment, more likely) which showed the first two votes determine the fate of most posts on reddit. You can use bots on twitter to similarly guide "the hivemind", I receny learned the intelligence term for this practice is "consensus cracking". There's even guides on the internet: https://edith.reisen/computers/security/forum_shills.html