Exactly. I expect this from people who don't know anything about Linux or the concept of OSes in general (e.g. when people hear I use Linux they assume it's for

Exactly. I expect this from people who don't know anything about Linux or the concept of OSes in general (e.g. when people hear I use Linux they assume it's for "servers and programming" only), and frankly it's quite understandable in that case. It's a damn sight more odd seeing someone who "helped found Gentoo" be seemingly incapable of distinguishing between Gentoo and other Linux distributions in terms of system maintenance.