Finally found it ... Apparently they deleted for someone in the past and I also see another guy with a thread that his account is no longer clickable although the thread he made is still there, not sure what their reasons were
Link:
https://bitcointalk.org/index.php?topic=43648.0That was back in 2011 where (I expect) the admins were a lot more free and the database was a lot easier to edit. Nowadays, since the admins hardly have time to restore hacked/lost accounts, I doubt they have time to go through and delete a user from the database. I really doubt that it's possible/feasible for the admins to delete an account now.