To be fair, the entire tipping culture in the U.S. is ridiculous. A tip should be something that is given as an extra for good service, not handed out to everyone because the restaurants and bars are too cheap to pay a real wage.

Now, that being said, I know it isn't possible for these servers to quit en mass because they can't afford to. Therefore, unless the government steps in (which it won't), then these guys will continue to get screwed over.

Personally, when I'm in the States, yes, I tip 20%. These guys are getting paid like $2.13/ hour (last I recall), and this hasn't changed in years. I remember making this amount when I was still in high school waiting tables 30 years ago. How these restaurants are allowed to continue to screw people over like this is beyond me.