I used this name for a specific purpose, then that purpose became irrelevant. With the API fubar, I ditched both of my profile names though this does bone one purpose of one of the old aliases (for my NSFW work) so I may end up bringing it back in some form. I like this name better though.
A comparatively mundane example, and possibly unremarkable to many, but I habe incredibly strong feelings about Spider Robinson’s “Callahan’s Crosstime Saloon” and “Callahan’s Lady” series. In particular, I read them during an extremely difficult point in my life, and the eponymous Law of Conservation of Pain and Joy completely changed me and my motivation in life.