First time I see this kind of abuse, pretty sure the user is using a script
Behavior:
Play the coins
Undo
This can be done indefinitely without giving the option to the other user to Make Resign.
What makes me think this is a script is that each action is done precisely 3 seconds after the other
At some point I thought it was a bug but probably not as after 20 minutes the game continued. But right after my next move the user started again to pay coins - Undo indefinitely
Game #173986815
Player chrisyeh79
Already reported through the Google form
I'm keeping the game open while working just by curiosity