He didn't know that his post was deleted by moderation. He wasn't trying to defy moderators, he was trying to debate.
There's no evidence that shows that he intentionally reposted after deletion by moderation, only that he reposted. A PM from the Moderator or a statement by the moderator in the thread warning about post deletions would have changed the trajectory of this, no?
As it stands, there is sufficient doubt as to TLDR's defiance of moderation to grant him his appeal, imho.