The FileVault suggestion doesn't even match the page it links to. That other page specifically says that there's more entropy right after a reboot, while this

The FileVault suggestion doesn't even match the page it links to. That other page specifically says that there's more entropy right after a reboot, while this page says simply to do it after initial installation, with no mention of uptime. Even if that other page is correct, the crucial piece of information was lost.