I agree with chief.
We have tom make a little sacrifice, but we get something good in return (the new community site).
And i must say that i'm impressed with the effort NL took to let you change your username.
The first time is logged in to the new community site, i was presented some clear dialogue screens informing me that i needed to change my username. Changing it was very easy, very "un-novalogic-like" really .
I'm glad they took this extra effort. Remember it could have been worse, they could have just deleted all the non conforming usernames, but they didn't so have piece with it.