I have been configuring LILO... last week, after having installed Debian 3.3 on a Pentium 75 ISA-based laptop.
Admittedly, this does not happen every other day, but if like me you like to play with old computers these websites (and usenet archives, old FTP sites [and those are disappearing too fast], etc.) are a treasure trove.
I have recently ported Doom to a very old platform, SCO Xenix. That was only possible thanks to SCO leaving 30 years old FAQ and info on their website...
I had the same thought. The first HOWTO I looked at was encrypted root FS and contains sections for configuration of Linux 2.4 and 2.6 kernels. Just slightly old.
I was pleasantly reminded of the advances that 2.6 brought, however.