Upvotes regularly aren't legit and neither are downvotes. Anything that seems like it might be wrongthink - I know this is the case because I've seen repeated instances where I or someone else will post a reply 8 clicks deep in some comment thread where really only a tiny handful of people are going to see it, and it will get instant downvotes from more people than were participating in the conversation that far down in the thread.

Like, there's no fucking way you get 5 downvotes (and no negative replies) within 2 seconds of posting unless your comment high in the pile.

Reddit has a long history of allowing wokesters to brigade with impunity, so I see no reason to doubt that they don't also turn a blind eye to bots doing the same thing.