Honestly, I don't think what OP adds to the forum--an ANN thread for a typical ICO project--justifies reversing a permaban for plagiarism. Not only that, but it reflects very poorly on the project that the thread starter is dishonest enough to steal someone else's words and pass them off as his own. And somehow I doubt Theymos will have any sympathy for this, but who knows.
IMO, the "more good than harm" exception should be made only in rare circumstances, and by rare I mean probably 1/250 cases deserve a second chance. There's something very simple and fundamental about not copy/pasting stuff from other sources and taking credit for it that people who do it almost without exception should not be members of bitcointalk. Most of the time, it's sig spammers who can't speak English who get caught doing this shit, and obviously OP doesn't fit that description, but I don't think he should be unbanned.
I think you should study the case a little bit more before jumping in to offer your opinion, which is welcome if you understand all the facts. First of all, DeepOnion is not an ICO project, no one was asked to give money with only a promise of a coin with some future value and/or a future project. Instead, DeepOnion successfully completed a 40-week airdrop during which the developers distributed a lot of coins. I'd say more about how the DeepOnion team has created many interesting features but I can tell when someone's not interested so I won't get into more details.
Second, the DeepOnion ANN thread page number is in the thousands. I believe that for that reason alone it should be in the interest of the moderators here to re-examine the case of the OP. Let's face it, it's more important to try to keep a thousand-page thread tidy than be honestly concerned about one allegedly plagiarized phrase from a website that was set up in such a way which truly makes me doubt about how OP could possibly find this phrase and copy it from there.
Also, I don't see any proof in which OP tried to pass off these words as his own, he doesn't claim anything of the sort in the allegedly plagiarized post.
I think that in a forum where racial, religious and sexual biases are often ignored, trivialized and sometimes even condoned and encouraged, this is an unjustifiably harsh stance against the OP, and anyone who has ever been in his position. It makes no sense how a single post can essentially erase the contribution of the OP to helping the members of bitcointalk first, and obviously, members of the DeepOnion community second to navigate through the world of cryptocurrency. I believe that a moderator should take such things into account before choosing the road of harsh punishment.