I think the question of the parent was if you could install Linux as you can with a normal PC (just by plugging an installation CD or USB drive), and the answer would be: "no you can't, unless you go through some hoops".
It's like installing Mac OSX on a PC, or Linux on a Mac: you can, but not easily and not in a way that is supported by the manufacturer.
You just have to scroll down in the link to see that there are several limitations that you wouldn't have with an OS that is supported natively.
Well, he mentioned developers and I'd like to think for the majority of developers those few extra steps wouldn't present a major challenge. Also the hardware is 100% supported when using a linux kernel optimized for pixel - https://github.com/raphael/linux-samus.
I use a Chromebook Pixel as my daily driver, and after wrestling with issues (e.g. no sound) I just went back to Chrome OS. You can see that others are having similar problems with that kernel: https://github.com/raphael/linux-samus/issues
