If you do change your name, PLEASE keep it under about 18 letters/characters.
Temporary Circumstances and a few others have used longer names, and it make their names too long to directly and conveniently open a post if they were the last persons to post in that thread.
Instead of just one click, for them you now have to go through about three unnecessarily extra steps just to open their last remarks in a thread. And you have to do that every time they were the last person to post in a given thread.
Keep the names limited to about 18 characters.