While I mean no offense, Ed Fox doesn't know what he's talking about. The brightness of the display has nothing to do with the operating system. And if he's talking about the user interface, Linux treats the graphical desktop environment as just another program, and many different desktop environments are available, pretty much all of them more customizable than the Windows desktop. And yes, a lot of specific programs aren't available for Linux, but Linux-native alternatives to those programs certainly are. I've been using Linux for almost 10 years, and not once during that time have I encountered a situation in which a program to do what I wanted to do wasn't available for Linux but was for Windows.
But that really doesn't address the question asked.
While I haven't encountered a lot of animosity between FreeBSD users and Linux users, there is definitely a division between the two. At least some of it comes from the fact that while Linux is based on Unix, FreeBSD is a direct descendant, which causes some FreeBSD users to feel that the better pedigree somehow makes FreeBSD superior. There's also a cultural difference, in that while Linux development is distributed (the kernel, drivers, and other components are developed separately and assembled by the various distributions), all of the components of FreeBSD are developed as part of the same project. The Linux community is therefore more eclectic -- sort of "all for one and one for all" -- while the FreeBSD community is more monolithic -- more "one ring to rule them all". The FreeBSD community therefore tends to view the Linux community as hopelessly chaotic and fragmented, while the Linux community tends to view the FreeBSD community as inflexible and lacking in creativity and diversity.
Ultimately, however, the two OSes are remarkably similar due to their common ancestry, so much so that programs developed for one can often run on the other without the use of any kind of compatibility layer. So it's a bit of a sibling rivalry. While a Linux user and a FreeBSD user might argue with each other about which is better, if you tossed a Windows user in the room, the Linux and FreeBSD users would stand shoulder to shoulder against the common foe. A bit of "me against my brother, but my brother and me against the world".