If it were me, I’d gladly donate my extra milk to another needy baby. I had plenty of milk when I was a young mom. But nobody has a right to demand it. I’m wondering whether the formula-feeding mom could not or would not nurse her own child. I’d have felt better donating to a mom who needed it bcz she couldn’t nurse. It’s a lot of work to provide milk to another; it makes sense to reserve it for those who did whatever they could to provide it, not to go to all that extra effort for someone who didn’t even bother.