Some hair stylists have started using styling razors more and more frequently. I believe it is used mostly at the ends of hair to thin hair out and to create an uneven edge.
I've had a hair stylist use a styling razor once and I absolutely hated the results. It created so many fly-aways and my hair looked kind of damaged too.
Ever since this incident, whenever I go in for a trim or hair cut, I specifically tell the hair stylist that I only want them to use their salon scissors. They're not allowed to use a styling razor on my hair.