i think i have covered that in this post! individuals cant curate all day long so they really need to delegate.. so using whitelisted bots is great way to ensure votes are well placed!
Meanwhile i also upvote every day from my own account .. as well as use my own money to send upvotes using my bot to minnows who need support for free as part of my minnow support project
more info on that here:
https://steemit.com/ecot/@eco-alex/pay-it-forward-minnow-support-week-2-28-minnows-supported