But what I was talking about was (someone) actually creating a downvote follower tool, kind of like Steem Voter.

@steemflagrewards does run a flag trail.

https://flagtrail.herokuapp.com/

@howo also made a tool that does something similar. There are other people who simply follow a flagger. I know a few people follow @whatsup's downvote pattern.

There are options out there, just gotta find what works for you.