Voted for
- No
While some people have used a bidbot on my behalf to upvote either a post or a comment, I've not used a bidbot myself in the nearly 14 months I've been on STEEM.
I know it's often termed promotion, but there is a promotion page that no one seems to use or look at. I'm not sure why it fell out of disfavor (my guess is competition and cost). Even so, most people don't trust the trending page and the majority of those who do are new users who don't know all of what's going on.
In order to be seen on the trending page, you need to spend enough to get a $200-plus upvote, or you won't make it to the top 10 where you're most likely to be seen. I don't know how much scrolling people do, but I can't imagine they go much beyond the top 25, which is probably a bid for a $100-$150 upvote.