Hey there,

In some circumstances, I can do this. Most of the time, with a 9 post history, you don't lose too many reward points

Usually, though, it needs to be for punitive or technical reasons. I don't see a great reason to change your username, BUT:

Write me an email (you can get my VMware email address through my user profile) and tell me the details of why you need to do that.

-Daryll