Thread:Riyu-Hime/@comment-6092594-20141219171350/@comment-25297120-20141219181452

I have a mere guess for this case. Because this profile does not have @username, maybe its user is logging into Khan Academy, using his/her social network (Facebook/Google/...) account.

There is a chance that KA system has a flaw: It forgets to insert the registration date into the database yet keeps resetting the clock whenever this user is online.