I guess it's a controversial subject with a few different schools of thought, but to me the girls in this line of work are already greedy and unrealistic enough, no need for further encouragement by over the top unnecessary tipping. We're not all millionaires here who have fuck you money to throw around on these chicks, and you're only furthering that myth when girls get the idea from overzealous tippers that they are worth more than they really are.
That said, no one is going to stop any guy from tipping whatever they want. Just don't think it's the best idea ever. I guess it's more of an AMP hobbyist point of view vs. an upscale escort hobbyist view. Overtipping in the amp scene probably has more negative effects, but who knows, we're not doing science here.
As one wise man once asked me..."no matter the looks, is any girl's pussy really worth more than 100 bucks"? lol