You claim that Bots help advertise---WRONG!
Voting Bots only upvote. Unless you are paying the Bots to Repost the content then Voting Bots do NOTHING but upvote, which is artificially induced.

Curators on Steem are good at upvoting contents that are good articles. Bots don't! I have seen people pay a Voting Bot to upvote a picture with just a few sentence that makes it hardly worth reading. Artificially inducing anything is just a bad idea and it should only be community induced.

So Voting Bots are NOT good for Steem.