Aren't we all responsible for our doings? In my eyes the fact that *it's their business* doesn't justify they're supporting abuse. Maybe blogging is my business, too, even though I vote manually and don't have a bot that does it on my behalf. Still I curate carefully according to the rules and being aware of the impact.

I don't think it's our job to balance bidbot owners' mistakes. Why do we have to spend our VP in order to flag the spam they upvoted, while they just cash out their SBD and don't care about anything but their own success? 

There is a heavy disequilibrium of responsibility. The result is an entrance hall called trending page full of trash. If this was my website, I'd be really concerned.