why can't use the following username?

來源: 於 2012-06-24 08:05:35 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

username "yourworld". After I logined a few times and wrote down 2 articles, it prompt to the login name invalid. Can you please check?

At least get my articles back or removed.