Username change ?

I think to change a user name, one must have a proper reason. For example, typo mistake when creating the user name. One can't just change his user name because he like it. How many times do you want to change your user name? It just can't happen!

I wanted to change my username since it is a real name which is quite rare which means it is quite identifiable. I have been trying to be more careful with my identity online.