yeah. Long-experienced people (not just plain-old) have grown that feeling called "warm fuzzies" [1]. And although warm-fuzzies are not in the spec, mostly, it is what makes or breaks good product/service.

anyone hiring such? https://news.ycombinator.com/item?id=46873028

[1] https://en.svilendobrev.com/1/MeetingtheSpecandOtherSoftware... (a copy because it's gone from web)