If you could do the maths, you would see that the bidbots are mainly used by minnows, it's just that the most visibility is to the whales who use them occasionally to score a big trending post. You would never notice the likes of me, and thousands like me who use them with small amounts daily but over time add up. MY rep is 56, but thats from the increase in rep from spending money on bidbots, NOT because I am a great content provider, which Im not lol !
Look at posts from any of the 60+reps, in their list of upvotes you wont see bidbot votes, you will see auto voted upvotes.