The moment I was introduced to Linux, I was hooked.
Early on, I began to keep notes on what I'd done. Two of my more complete install logs:
From time to time during installations (and more recently, blogging) I find the need to expand on and discuss the topic a little more. These I refer to as “articles”, although they're somewhere between tutorials and gotchas.
While my tinkering-time is less, I'm a regular lurker on LQ.org and Linux convert.