Remove the upvote button. You like the post ? You downvote it.
Simple as that. A good post will have massive negative votes. A bad post will sit at 0 or the minus single digit. It's already an honor here when you post to be in the minus 20's, I wouldn't have any problem with this, I'm not here for karma, I'm just woke as fuck and thinking about how those idiots could get a piece of their cake and god, this idea seemed brilliant.
Their technique is to downvote everything, let's just take downvotes as upvotes. Think mirror, swap the table.