Name appears with a '1' after it
In the past, I've been using my old, plain iTools (and MobileMe) user name (without the @mac.com suffix) as Apple ID. Later, Apple required logging in with your complete e-mail address (now with the @mac.com or @me.com suffix). So I switched to using that for logging into any Apple services. But ever since that switch, my Apple Discussions (and now Apple Support Communities) name is displayed as Harro Jansz1 (with the '1' behind my name), possibly to distinguish this account from my previous, 'bare' account. I have already changed the name for that older account, but am not able to change my name for this one. Does that mean I can't get rid of the '1' behind my name? I hope not; I think it's annoying and unnecessary at this point.
Does anybody have any idea how to fix this?
MacBook (13-inch Aluminum Late 2008), OS X Mountain Lion, Aperture 3.3.2