This is the best news I've seen for Bitcoin in a long time:

What other cases there are of services with real customers selling something that isn't "for bitcoiners" that stopped taking fiat payments?

My expectation and hope was always that a percentage of customers would bite the bullet and figure out how to get some coins in order to buy the thing. Most of them would find out it wasn't that hard anyway.

Now imagine if more services did this. Or imagine a world in which bitcoiners produced things that the external world wanted to buy, but was only being sold for Bitcoin?