I tried researching this a bit, and from what I understand, the company basically has no money, which in turn makes the stock worthless. So since the stock is effectively $0.00 per share, they can just “cancel” the stock completely.

This could be oversimplified or dead wrong, but I don’t understand any other way this could work legally.

This isn’t an AI problem. This is a “most humans are assholes” problem. How hard is it to say “Oh, you don’t have what I need? That’s too bad. Can you please cancel my subscription?”