Well, actually, part of doing it IS documenting it so that others can enjoy Gentoo on their machine.

I normally do blog posts when I first get a machine, the unboxing and so forth, but documenting normally goes somewhere on the gentoo documentation site. Or possibly our new wiki.

And for the record when fun topics come up like ARM based hardware, or Linux stuff in general (I'm not much if a web guy, I prefer lower level work) I tend to visit the comments more than a couple times.