I suppose I could agree if only so the new FreeBSD user has a reference to compare by going through what the guys on the other side of the tracks have to do to rebuild everything from source, kernel and ports. For FreeBSD users its a pair of svn updates, a make world, maybe a reboot, and a portmaster -fa. From what I remember with slackware and from lightly reading advocacy threads like this one it's unusual for linux folks to build their own anything with the exception of the kernel.