Just a friendly question... I may be naive for asking this, but its OK.. I would still like to hear your opinion on the subject.
Since the app you developed (steembottracker) is pretty much the standard today. How feasible would it be for it to have a shared blacklist? I'm no dev, which is why I ask... Maybe if the website itself would not allow bids to be "from" and "towards" certain blacklisted users.
Granted this won't fix all the problems, you've made some excellent points here outside of blacklist implementations and we also know there is always a bad actor who will find the new loophole to exploit. But maybe, just maybe it will help enough.
I'm also considering doing some public shaming myself, meaning that if a bot is preferred by scammers and spammers because the operator simply does not care, then everyone should know this and make up their mind. Maybe that would not work either and I'm showing more naivety. But hey... one can brainstorm publicly I guess.