Username suggestion

[Ladysarajane]

I have a suggestion for the next version or update....
I submitted a bug about the username needing to be all lower case or you recieve an error, and I understand the reasoning on why it really isn't a bug, but Maybe in the next version there should be a "explaination" to use all lowercase. All my admins had problems registering because they thought the username was already taken. I am going to follow the suggestion in the bug followup and alter it for our needs, but it would be simpler in the next version in registration for usernames, just to use all lowercase.