> what if instead it’s a way to purge all collaborators who have ego issues themselves.

I suppose that's possible. To me, thought, the more likely explanation seems to be simple vanity. I remember sensing jealousy in his writing when ChatGPT came out. In this post he has found a new angle ("people kept asking me about it. And over and over again I ended up explaining things about it"). I still get the feeling that he is seething over the attention that OpenAI got, especially compared to Wolfram Alpha.