This answer was brought to my attention by a late answer marked for review. I look for duplicates or comments when I see late answers, and I noticed the recent late answer would benefit from including information instead of the link, otherwise okay, edited.
When I flagged the answer in question above as not an answer because it is a comment agreeing with another answer, I was warned that the flag was declined by a mod. Usually I understand when I see this happen, but I've never had a flag declined here and wonder what I missed.
This is just part of the accepted and top answer with explanation:
les propositions de « on récolte ce que l'on sème » (qui existe en anglais sous la même forme : « you reap what you sow »)
This is the answer that I flagged in its entirety, which was posted three years after other answers:
L'expression qui me semble la plus juste est : On récolte ce qu'on sème.
This is also seen in comments here on the same page.
Why was this not a good flag? Isn't it a duplicate, a comment on another answer with no supporting or additional information?