As I’m a European in Europe, it’s always a difficult topic for me, this tipping thing. Our system works differently, where salaries are (in principle) what I think are called living wages, in short: you can afford to live from one paying job. All that is included in the price at restaurants. In some European countries there’s a surcharge on the menu for delivering your order from the kitchen to the table on a plate. So, tipping is for us, culturally, a reward for doing your job at a level beyond what could be expected. Therefore, tips are lower. I think this is the change of the economic system you refer to in your article. The remark in this comment should also be counted in that. I think you’re right that tipping can be a good way for sharing wealth more equally, but it’s the first time I heard of it in that respect. So, that is also a change to the system. I really feel that the first step should be to pay wait staff a proper wage (I understand you did), and then include that in the price. I didn’t read yet what is behind the link you shared about a research on customer satisfaction at restaurants that did away with tipping, but can it have something to do with staff not going the extra mile to please a customer, because they … okay, I’ll read that thing first.
Anyway, please note that I do have immense respect for the people that make my food when I eat out, and who do their best to make my day/evening more pleasurable. In European standards, I tend to show that appreciation. I really do feel that changing the system in the US, would lead to less debate about tipping. I don’t think there’s an equal public debate on the topic on our side of the Atlantic, and that might have to do with a system that better appreciates the people working hard.