Earlier quoted context omitted.
Call me crazy, but when I use one of these services, I expect the service to be reflected in the price.
Thought experiment: what would happen if tipping was made illegal? Would restaurants go out of business because they couldn't pay their servers enough because their patrons weren't willing to pay when the actual cost of dishes was made explicit on the menu? Or would restaurants ditch table service? Or would waiters settle for a new lower wage?
Other first world countries' servers are more expensive, and so less plentiful.