@metalune I recently wrote a post about making the Esperanto flag in CSS. Imagine the tiny subset of people appealed by this: 1) readers of my log who are also 2) interested in Esperanto and 3) interested in CSS.
And someone emailed me with suggested improvements! That email conversation was wonderful; just a moment to gleefully converse around a topic so esoteric and nonsensical. A highlight of three days, as we discussed it to and fro.
For people who care about, support, or build Free, Libre, and Open Source Software (FLOSS).