Fun story time. I use to play MTGO, the online Magic the Gathering game. Played it from beta for a few years say 2002-2004. Wanted to check it out in 2014 to see how it changed. Failed password reset online, had to call in to support.
The support guy was like chortle what was your security passcode? I had no idea. He tried giving some hints. I said it has literally been 10 years, I am never going to remember. So he went ahead and rest my password. He told me for the record my security code was "I am the nacho king", but I would be prompted to change it at next login.
So could I have social engineered a 10 year old MTGO account? Yes. But without it, I would have been locked out. I was NOT going to remember some stupid passcode kid me set on a game account.
And apparently I am the nacho King.