What kind of abuse are you guys talking about exactly? From what I understand from this post it's people farming rewards by creating low effort posts and upvoting them through tribe token whales?
The pattern itself is seemingly easy to detect, but the main issue with flagging bots like that is that there needs to be a human element to prevent false positives. As in: bot flags post in some way (resteem, upvote, comment, shares it into social media channel) and a community checks those posts and can decide on their own if it's an abuse or not. Auto downvote trails controlled by a bot are dangerous imo.