Maybe im still too fresh off of reddit, but the linked mod’s definition of brigading and vote manipulation seem pretty tortured…

Brigading logically implies a brigade… like a concerted effort by many people, usually coming over from the same place. To mass manipulate the content of another place.

And on reddit, ‘vote manipulation’ referred to using bots/ multiple accounts to downvote others while upvoting oneself. See the whole unidan thing.