I have noised that you cannot have a CAP on the start of your username and i think that funkypool should let users put a cap on the start of there username because i think it looks much better if people can use caps at the start of there name.

Lower case lettering is to create a flow, I believe. It wouldn't look as good when you're watching a tournament unfold to see; poolking007 vs. Drunk_Townie for instance. Same with the underscore, too, I think.