The head moderator of that subreddit was violentacrez aka Michael Brutsch, a troll prolific to have articles about him in The Guardian [1], The Atlantic, [2], and The Verge [3] among others. It's well within the realm of possibility that he added spez as a joke.
“In October 2012, Chen exposed the real name and details of Violentacrez (a moderator of several Reddit jailbait communities), a Texas Internet developer, who was subsequently fired from his job.”
Yo, I have lots of opinions and strong feelings about reddit and spez right now, but I don't think that's accurate.
Afaict/afaik that was from a time where anyone could be annoited to a mod position without their consent.
I'm happy to have more pitchforks, but I also don't (1) like lies being spread or (2) want to distract from the "righteous" cause with something that's not true.
[1] https://www.theguardian.com/technology/2012/oct/16/reddit-vi...
[2] https://www.theatlantic.com/technology/archive/2012/10/what-...
[3] https://www.theverge.com/2012/10/18/3523434/violentacrez-mic...