I maintain a blacklist of recruiters who annoy me. Mostly it's the ones who call me up repeatedly, or who call me about ridiculously bad fits. However, I also keep a special section in that black list for any recruiter that uses the term "Rock Star" or "Ninja", and I openly mock the companies who use the term. I also find smugness later on when they fail, because they clearly were prima donnas trying to attract other prima donnas.