If you'd like your username changed, please reply to this topic, and as the faq says make a request including your old name and the name you'd like it changed to eg,
"Hello can you please change my name from slime bucket jo to fluffy wuffikins 72", so that everyone on the forum can see who's changed their name to what. Don't private message the moderators requesting name changes, since while we're happy to change people's names, private messages are, ---- well private, so again there would be no way for yourself and others to know when your name was changed, or what it was changed from and to, just post here.
Also as noted in the faq, be very certain you want your name changed before making a request, since unless there is an extremely good reason only one name change per member is allowed, as too many username changes could cause chaos.
So, think carefully as it's no good requesting a name change to snuggly wuggly sugar mouse of sweetness and only then! realizing it makes you sound far too cutesy.
Note, those looking for the old name change topic to see who has requested what name changes in the past, you can find that here However please make any new requests for name changes in this topic.