Good one Sinnister, let me add my thoughts too....
As individuals, we all have different preferences in life, whether it is sexual or non sexual, we learn to respect these "Personal" preferences, however, when it is a business transaction, then it is difficult for a willing customer to understand the exclusion.
It's like opening up a candy store, load it with beautiful candies then tell a little girl you will not sell her any or let her in the door, it really does not matter why, it's simply not right, if you are open for business, then it should be open to ALL.
CH's known preference is pale skin ladies, because he is a customer, he can act on his "Personal" preferences and choose, it's like going to different candy stores to choose your favourite candies or like choosing a girl in Amsterdam's red light district through the windows, there is no hard feeling for the girls who are not chosen, it is just business, can you imagine one of those windows with signs saying "must have all front teeth" or "no cockeyed dudes".
If my favourite Escorts/MAs exercise their personal preferences in look, age, personality and "size", I know I will not even come close to making their acquaintances, but because they honour the meaning of "open for business", they grace me with their beauty, services & company, of course, they get a reward for putting up with me, hence, a business transaction.
IMHO, stating the exclusion in ads does not make it better, regardless of what the exclusion is, in fact, I think it shows a bit of ignorance and arrogance.
I understand exclusions based on safety concerns & improper etiquette but I do believe all other exclusions has no place in business, but then again, everyone's mind works differently and the sense of wrong or right does not necessarily correlate with race, sex, wealth or education. Entrepreneurs run business differently, that's why some fail and some succeed, I will leave it at that.
Let's turn the page and enjoy the willing and beautiful ladies out there !!
Happy Holidays to ALL !!