Last I checked it uses e-mail addresses for your account 'name'?

maybe he wanna say player names

"Coordinated with the open beta will be a stats wipe and pruning of player accounts, however we want to make it as easy as possible for all of you to transition over. On Monday, we will be deleting the player accounts of people that have not played in the last 28 days. If you have played within the past 28 days, you will lose your stats, but will NOT lose your player name, custom settings, profile information, etc.. When the site opens again on Feb. 24th, you will be able to use your current email address and password to login as usual. If you have friends that haven't played recently, but will want to maintain their account, let them know that they should play a game between now an Sunday. After Tuesday, we do not expect to ever completely wipe QUAKE LIVE player stats again."

that's re the open beta though not full game but i guess same would apply?

yeh, think it's pretty safe to say you won't lose your player name.