Hi Fudzy
Welcome to MyGaming.
It is affiliated with MyBroadband, but also exists independently of it. We did not want it to merely be an extension of MB, so we opted to set the forum up independently.
I do however understand your sentiment. However, now that you have created an account, the system will recognize you every time you visit the site, so it shouldn't make it any more time consuming or annoying than if the forums had been unified.