UNFAIR
I'm not sure you understand what that word means.
Unfair means that a rule or action applies to some people and not to others. In what way was the change "unfair"? Everyone is playing by the same rules.
What is even more hilarious is that the change protected you from the larger losses you almost certainly would have had.
The pendulum swung against you, and you should have stopped while you were ahead. That's on you buddy, that has nothing to do with Doog or anyone else.