In the past, when mentoring developers that tend towards god-objectery, they tended to avoid creating service objects because their mental map of the problem had a one-to-one correlation between "objects" and "the physical problem domain" (e.g., Users, Accounts, etc.)
Given how much I've seen this sort of stuff in the wild, I felt it would be a useful article to hand off to new-ish developers (I'm the author).
It sounds like you're well beyond that, though, but thanks for reading nonetheless!