The phenomenon of endorsing people for their professional skills on LinkedIn is more and more evident, and it grows along with the expansion of this broadly used professional networking website. This article focuses on the ease with which people endorse others and also accept endorsements and the potential impact of this action on people's knowledge authority profile. An online survey was answered by 120 professionals from all over the world. The findings reveal some considerations regarding the interrelation between the act of endorsement and how personal, rather than epistemic, its criteria are. Implications for recruiters and educators are discussed.