Servers don't even make minimum wage. Servers at your local Denny's, IHOP, Waffle House etc. only make around $2.50 an hour and servers at Applebees, Chilis, Olive Garden etc make around $3.50 an hour.
It makes me fucking nuts when people like Filthy Rich say shit like "waiters extort". Without tipping your server the restaurant industry fails. If you don't want to tip, don't go out to a restaurant, there's plenty of McDonald's around for you to cop a value meal.
It's funny too, when I worked as a server back in the day and my baby's mom works as one now at Olive Garden we always seem to notice that the cheap ass non tippers and low tippers are always the people that run their server around like crazy and always try and get as much out of shit as they can like all the extra bread they can get, chugging as much soda as possible and getting crazy non stop refills. Ol cheap ass bastards, take your asses to Burger King.