The new guidelines are pretty good.
A) The meaning of “Axe grinding” might not be apparent to people of other cultures whose primary language might not be English, and
B) My first and only language is English (although limited by the Southern dialect and attendant cultural oddities), and I’ve never heard of “grieving” in the context of a message board . Even after the explanation I still don’t know what it means.
Edit: It has been pointed out that the term is “griefing,” not “grieving.” Apologies. I still don’t know what it means.