In Arch there are AUR packages for specific versions so you don't have to do it yourself. Arch is about picking and choosing your packages, but not really about actually building/patching things on your own like LFS or Gentoo.
Although picking a rolling-release distro and then using an outdated kernel does seem counter-intuitive.
I don't understand. What is the problem with what I said? I am genuinely confused by your response.
How is it off-putting that you can install a package with the exact version you want instead of doing it yourself. What you said puts more people off of Arch, not me. What you said makes Arch sound more complicated than it is.