I agree here.. Just because you dont personally like someone does not mean they take less than perfect care of their animals or will give bad customer service to potential buyers..
I know of a few breeders who are not people you can just talk to on a friendly level. BUT the snakes they sell are the utmost quality and they are willing to make it right if anything goes wrong with a sale.
Many people are in it just for the money. Many just as a small time hobby. Many are in it for both reasons. If the animal is the quality you want, the breeder takes care of them and has no problems with sickness or parasites, they provide current pictures, the animal is eating and of a healthy weight, they are willing to talk to you concerning the animal and its background, they ship responsibly and correctly... Then nothing else should matter.
Everyone has their own ideas about everything. Your right may be my wrong and vice versa. If you feel its the right breeder with the right snake for you then it is. The BOI is always helpful as well for checking background on previous sales.