[ta988]

And staff will go work for restaurants that pay better.

[anamexis]

I think JadeNB said it better than I can here: https://news.ycombinator.com/item?id=35315551

Theoretically this may be true, but it's not how it will play out in practice. A few people will not tip in protest, the staff will think they're jerks (which they arguably are), and nothing will change.