This is the first time I see someone who just created an account and and never went back to Forums XD. Maybe this guy is just like me who Created an account then returned to reading Novels and came back here to the forums coz he already read everything and waiting for updates XD... Nevermind that welcome to NUF XD
NU and NUF are directly connected, anyone that creates an acc on NU instantly gets a NUF acc. So, if you go to the profile of an user that never entered NUF, you'll see this kind of profile. Or, the more likely possibility, this is actually a clone, made just for the sake of being tagged, in this case, you don't need to log-in on the acc again.
