This is private work that is being done with Codex. Not drafts shared on r/math. I suggest you reread the article. This is more of an expectation of privacy is

This is private work that is being done with Codex. Not drafts shared on r/math. I suggest you reread the article. This is more of an expectation of privacy issue. If you write on an envelope and USPS has a copy, you have no reason to be mad; if you write on a letter inside the envelope and USPS still has a copy, you could rightfully be mad and say this is disgusting.