Not sure at all! It still seems like the ordering is tricky. They don't know how many ethical eggs they've sold when selling towards the consumer. There's not a guarantee of future ethical eggs when buying the certificate.
Maybe it works out OK, and they can sell 873,551 eggs at a regular price after that many certificates were bought, and the rest at the higher price. I know very little about how the food supply chain works
IIUC, this exposes the high-welfare egg co to more risk. It's hard to sell 1 million eggs for one price, and 1 million for another price. So they probably have to choose to sell at the low welfare price constantly. But this means they build up a negative balance that they're hoping ethical consumers will buy them out of.
To add more color to the inadequate equilibrium: I didn’t want to hang out with people with a lot of risk, not because of how bad COVID would be for me, but because of how it would limit which community members would interact with me. But this also meant I was a community member who was causing other people to take less risk.
LW must really need the money, having decided to destroy a non-trivial communal resource