I see a lot of 4a's on here labeling themselves as 3s.
I also see a lot of 4a's on here who appear to take issue with people who like to use the hair typing system. I like the system it helps me identify people with curls like mine and it has been a huge help with helping me find products that work.
I used to call my hair biracial hair which as we all know varies widely, now there is a label for hair that looks like mine that helps me target info and research for hair that resembles mine. It has been super beneficial.