If theymos could be changed the profile username and put a word
"Guest" under profile name by request like on these threads
1 and
2, that could be a way to delete the account for private purposes or any reason that could be lead to negative circumstances to the users.
I don't think he will do that for no apparent reason. As LoyceV pointed out, if the user made a mistake and added his real name or some other info that can lead back to him, he would have a valid case. There was a case recently where a user registered an account here, and instead of a username he added his email address. Now, that's a valid reason to request a name change. I think theymos honored the wish and the name was changed. But all quotes with his old username remain as they are and those would either have to be manually changed or deleted. That goes for quotes in this thread as well.