Let's be honest with each other. Phil is a drawing, and so are the treats. The money, however, is real: it's a small donation toward his server bills and general upkeep. Nothing gets unlocked. There is no premium goat. He stays free, and grumpy, for everyone.
Payments are handled securely by Stripe; Phil never sees your card details (he cannot hold a card, he has hooves). Donations are voluntary, non-refundable, and buy nothing but warm feelings and hay.
Tap the scene to hurry him along. He'll grumble, but he'll allow it.