Having been on this MB and YMB for years, I’ve observed that these guys are in teams and just play “ping pong” among themselves to give traction to their negative posts and respond in support of the argument. If the post is ignored, they will “revive” it by commenting on and bring it to the top of the page. Some have multiple accounts and are “soloists” !
There are also many schizos who flip flop... these are the “swing traders” and play both depending on their current position.. Some are just “wolves in sheep’s clothing”!
This game of influence on social media is very effective and lucrative enough as its impact can directly translate into dollars and cents for the syndicates.