Are you saying that non participating in the downvote-actions makes a person a questionable up to a bad participant?

No, I don't. I say it helps the system to work as intended, but I don't judge. There are many reasons to not participate in it, and I accept that decision.
My upvotes distributed by curangel don't depend on having used the downvote power. That'd be silly ;)
And our downvotes don't target people who upvote themselves once in a while, or even daily. It's always a decision on the individual case. The infographic above shows what clear abuse looks like. People trading votes on a constant basis, giving 50% and more of their rewards to always the same users. And again, we don't ask everyone to agree with that being worth a downvote, everyone should make up their own mind what kind of behaviour they want to see on here. As I wrote, it's provided as inspiration, not an order.