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.”
“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.”