i agree... and some servers deserve nothing at all in the way of a tip..... though the expect 15% regardless for crap service.
so the question is how much should you tip? ... the answer is however much you want or dont want to tip. That is why its called a tip. It is optional.
Never suggestion that it should be mandatory. I am saying there really isn't an incentive for servers to do their job well if they are getting a fixed income. Like I said, I go to convenience stores where I am not allowed to tip. No one is tending to my needs, the lines are always long, the cashiers don't cater to me and after my transaction is done the cashiers are going about their business in their own conversations. I bet this would change if I were allowed to tip these associates.
I try to make a habit out of tipping. Not because I can afford it, but because I don't see the harm in tipping someone who is working hard to service me. And the way I see it, they should work hard to service me. After all, I can always get the same type of food elsewhere.