About every 6-9 months, I'm searching through error logs looking at odd messages, or trying to see why we have some obscure configuration parameters set, when I

About every 6-9 months, I'm searching through error logs looking at odd messages, or trying to see why we have some obscure configuration parameters set, when I start reading something relevant-looking on a Blogspot blog. It becomes uncannily relevant, even to the point of familiar IP addresses or pathnames in the blog, at which point I realize it was written by my predecessor. The obscure parameters are usually obsolete, and were required because they were running the very latest versions of the software before the defaults matured. The blog was something like documentation at the time.