Here is a (somewhat vulgar) point of view on it
https://steemit.com/humor/@sift666/toss-your-votes-about-like-confetti
Basically it boils down to, vote on what you think is quality.
In my case, I tend to (generally) be pretty heavy handed with my worthless minnow vote. I do use the "auto" upvote when posting and I do use the upvote on my own comments when the string of comments is very long. Else, I tend only to upvote other people.
Hello timeshiftarts! Thank you for the linked article- it was interesting.