Greetings!
What does “grief” mean?
I believe it’s some behavior from players, and pretty sure it’s not a literal meaning of the word.
Just another term used for harassment.
Thanks! Good to know 
Griefing (to grief) often means vandalism, which usually is the act of destroying others’ buildings (as also used in Minecraft). Harassment can be of any kind. This is why griefing and harassment co-exist in the title for the thread ‘Griefing and harassment’