I talked a new member named Scolenex, a panda loving individual who is not a moderator. Scolenex was able to change the title of his intro thread without using moderator functions. Scolenex only posted one thread, so you don't need trophy points or anything like that to unlock the ability to self-edit your titles. Editing the body of text in one of your pieces will not give you the option to change the title, that is a separate function. Scolenex explained to me that underneath the title on one of your posts. There is a tiny bit of text that says "thread tools". Hover your mouse over that, and it will reveal something that says "edit title." Clicking on that will reveal a gray box that is somewhat hard to read, but you can highlight your title and change it. In fact the editing process is identical for the staff and normal members, the L-O staff just have the ability to edit other people's titles too.