So some of us wish...
1. Kindly point out the rule that it is unauthorised.
2. My post has links to the game which anyone can audit / view for their own discretion.
3. As you mention, you don't think it has much impact then 'it' will not affect you much.
4. You can note them but who else here can see your note? So I post my note in forum but you claim you don't think is authorised. But you suggest to make note. Oxymoron suggestion?
5. Asking BGA Admin for a solution/function, if implemented, do not mean you have to use that function.
BGA Admin can deploy the function of single player abandon for players with 400 elo and above.
This means that the victim of the bully do not have to endure the bullying.
This also reduce servers load which is profitable to BGA.
Hanabi is a cooperative game. If players do not want to cooperate with you but force you to commit suicide in the game, drag out the game clock, is that not bully ?