Many of mine are already mentioned, but I'll reiterate:
-Buzz words that aim at appearing sophisticated (ie. luxury, elite, exquisite, or any number of French words for non-French escorts). While some escorts are indeed elite, I'll make that determination for myself, thank you! Plus, charging $350, $400 or $500 an hour doesn't make you elite in my books...not unless you live up to it.
-Ridiculously stringent screening requirements. Full name? Nope. Three references? Don't think so. Work number? Are you kidding me?! On a first time meeting, I know nothing personal about you. I expect the same line to be drawn for me. One reference should be sufficient, and it shouldn't be an absolute requirement to meet. For example, I'm thinking Adriana Luxx where you can either offer a reference from a reputable lady or a deposit. Seems perfectly reasonable to me! Note to self: need to see Miss Luxx!
-A wishlist rubs me the wrong way. A few gift ideas that can be enjoyed together, like chocolates, wine, etc., is great. An extensive list of watches, handbags, jewelry, shoes, and clothing is not! While I have on occasion bought those things for industry ladies, it's a result of having gotten to know them on a personal level, at which point you should have a pretty good idea what they like without having to resort to a wishlist!
-Rate lists that are redundant. More of an oddity than an actual annoyance. If one hour costs $250, and two hours cost $500, you don't need to list 2 hours as a separate rate!
-Extensive lists of restrictions for their clientele. For example: race, age, grooming habits, contact restrictions, etc. Race and age don't dictate maturity. Good grooming habits are a given, and don't need to be reiterated on your site. Text/call/email only is annoying enough, but having to confirm multiple times the day of, or you not being bound to the appointment until the last minute when I'm already on-location, is incredibly disrespectful of my time.
All in all, it's about mutual respect. Don't try to lead me on, don't try to take advantage of me, and don't place ridiculous restrictions on me that you don't follow yourself. I'll try not to waste your time, I'll be punctual to a fault, and I'll be well-groomed.