1. Take out orders - we do not simply hand you a bag. Often we will finish the food, ensure that it is complete and to your specification, and keep it presentable for when you arrive to get it. Since we're not actually waiting on you, we don't expect a full tip, but a dollar or two is appreciated, especially if there are substitutions or a complicated order.
Umm, shouldn't we expect the food is complete, presentable, and to our specification because we paid for it? Carryout is analogous to going to a gas station and asking for a pack of cigarettes, should the cashier be tipped in that case?
2. Tip - 15% is the starting point. Deduct as you feel appropriate, but you should add with the same enthusiasm as you subtract. We'll do whatever is takes to make you happy. Don't reward us by leaving the standard.
IMO if the server gives good service, they will receive a 15% tip. A tip is a gratuity, meaning it's given according by my choice, as a reward for good service. It's not mandatory.
3. "Camping Out" - Take your time, eat at your own pace, and enjoy yourself. We want you to have a good time. But you've come to eat, not to lounge. If you want to continue your conversation, go to the bar area and grab a table there. We appreciate your tip, but you are costing us money by sitting at our tables for excessive periods.
I agree with this to a some extent. I think helping your children with their math shouldn't be a use of a restaurant. However, going there, having a conversation, and having a good time, is the purpose of a restaurant, and given those parameters, patrons should be able to stay as long as they like. Most likely (but not always) people will order coffee, drinks, etc... during this time anyways.
4. Wages - yes, we are paid, but this pay is always minimum wage, though the rate varies by state. In NYS, we make $3.85 per hour. Deduct taxes, and we basically subsist on tips alone.
Noone forced you (or anyone else) to be a server. Some people may tip less than 15% or (in rare cases) not at all, but that just comes with the territory.