Several possibilities come to mind: 1. Laws are administered by judges who might have a different approach to interpretation than random HN commenters. 2. Ope

Several possibilities come to mind: 1. Laws are administered by judges who might have a different approach to interpretation than random HN commenters. 2. Openly flaunting the law might give more bad publicity that it would be worth. 3. There is practically zero market pressure to offer free refills, but not offering free refills is a potential goldmine.