Sharescene.com will ONLY allow a person to change username if they have made less then 3 post.
The reason for this exception is a number of people join Sharescene.com and enter their "real name" as their username (only to discover this mistake only after their first post). If a member has been posting under their “real name” for more then 3 post then it is viewed that there was ample opportunity to either request a username change and/or stop posting.
If you have less then 3 post, and wish to change your username: