Earlier quoted context omitted.
I’ve never tipped 20% in places without a tipping culture, but I must admit your comment makes me think I should — at least, in the places where a tip would not be considered insulting. I tip in the US to receive better service. If it’s not considered rude to tip, and it results in better service, why wouldn’t I do that?
You won't get better service – that's my point, the next guy who sounds like you will. If people who look and speak like you tip disproportionately, everyone else that looks and speaks that way will get great service by default, even if they don't tip, at expense of everyone else now getting bad service. This of course doesn't apply if you are a regular, feel free to do whatever you want. The staff will treat you wel…
Sounds like the same thing to me. Just playing as a team instead of an individual.