I saw that post yesterday and think it could be an excellent idea. There are too many unanswered questions to form a solid opinion, but I never understood the refillable mug concept. Do people put all different kinds of soda and coffee in it during the same trip? Where do you all wash them? It always seemed unsanitary and unnecessarily complicated.
But if we can start using disposable cups instead, suddenly the program becomes more practical. I recognize people keep the mugs as souvenirs, and this would end that practice, but that doesn't bother me.