You're not describing anything that isn't also applicable to FreeBSD - nor many other open source OSs. I mean take LXC for example, a great many flavours of UNI

You're not describing anything that isn't also applicable to FreeBSD - nor many other open source OSs. I mean take LXC for example, a great many flavours of UNIX had OS containers long before OpenVZ hit Linux - let alone LXC. The biggest points you could probably win an argument on is: 1) hardware support: but that's less of an issue with servers anyway. Plus ironically I've had more issues installing Debian onto HP Proliants than FreeBSD due Debian's strict policy on non-free drivers. 2) size of community: but then what's the signal to noise ratio in the Linux community of actual helpful, knowledgeable engineers vs that of FreeBSD or any other POSIX-like platform? Linux does have a significantly bigger community but I've found that does result in significantly more misinformation being published too. A genuine, non-trolling and non-elitist question: have you actually tried any other POSIX-like platform aside Linux? I'm not saying you should need to since you're clearly happy with Linux, but since the points you praise Linux can be applied to a number of platforms outside of Linux as well it does sound like you're making assumptions that those points are exclusive to Linux as they are why you're describing Linux as the best OS out there.