Ask HN: Does anyone unironically refer to themselves as rockstars/ninjas?

Does anyone unironically refer to themselves as rockstars/ninjas?

This question applies to programmers, designers, lawyers etc. I am not asking if popular musicians call themselves rock stars, or if assassins who wear black call themselves ninjas.

I am asking because I wonder if everyone feels embarrassed by these terms, why do people use them? Surely, it must work on some people.