The others are correct, I can’t really give you an answer for your hypothetical about classic. Primarily, we simply don’t have any information on how support will work there or what policies will be in place.
Overall, “Griefing” is a bit nebulous, often used to mean “something I don’t like”, but not necessarily something where our staff would be able to intervene. We tend to focus on clear violations like inappropriate chat, naming, cheating, exploitation, etc… and not micromanage social interactions.
That said, when some behavior becomes extreme, we have stepped in before. Not saying it would be the case in your example, but the circumstances may be looked into.