Or material that could plausibly be underage material. They used the gray zone to justify that the material was not illegal, just questionable. But the previous poster is right. The sub was never shut down for the material of the posts directly, but that it had horrible optics. Reddit never took the high road.
Google can quickly find you proof, but the answer is much less satisfying. As much spez has the most punchable of punchable faces, he was not modded by choice, but instead appointed. He was a mod, but for not long, only in name, and named by a 3rd party.
There is so much to hate about this guy, using the jailbait mod angle just diminishes the reasons into just namecalling.