Someone left me a comment with the link to the popular Bring Back Last Name Options jira, which I think is a good idea but it only really benefits newbies (or new alt accounts). I clicked on it to see if any new progress has been made, and came across a link to an even better jira!
Are you a current resident who does not like your SL name? Please vote for the Name Change jira started by a resident name Sexing Oh. I think this jira is better cos it benefits current residents like you and me — IF we wanted to change our name, we should be able to without having to start over with a new inventory or lose our rez date!
VOTE FOR IT!
The jira is actually several years old, since 2008! Right now there are 129 votes so the Lindens probably aren’t paying too much attention to it.