“Install Gentoo” is a meme, not life advice. With Gentoo, the installation process gives you good insight in to the internals of Linux systems and compiling (almost) everything from source is interesting, but won’t produce noticeable benefits for average users. Especially since updates take some time, what with compiling the programs again. Gentoo is a great distro with a fantastic package manager, but unless you’re an enthusiast or a serious hobbyist, Don’t Install Gentoo.