lol I hear you. I personally don't feel like we need any more categories. I tend to think people identifying as 4C may just have 4B (as far as the original definition) hair that looks/behaves a different way from other 4Bs they have seen. It can get confusing between (texture) manipulation, having more or less shine or sheen, porosity, texture etc. But I was curious to hear more about this 4C I see floating around the boards. I don't think we need another category but I'd be interested to hear a self identified 4C's explanataion of what it is. Good topic!
Keep in mind that people do all kinds of things to their hair and some of the 4Bs you see may be manipulating their texture to make it hang more or have more/less curl. There are so many things that affect the look of the hair. Also, IMO most hairdressers really don't know how to do 3c hair. Even less know how to do type 4 of any kind. So when they act like they should be overcharging you, I think that reflects more on their lack of training/skill than the alleged manageability of your hair. Just my 2 cents!