It's all good. The Jack thing is, in my mind, a bit sensitive, because a lot of people criticizing BlueSky talk as though Jack runs the place, owns it, etc, all of which seems factually incorrect. He has a board seat, but seemingly cares about it so little that he deleted his account. From what I hear, nostr is his focus, but I'm not on there so I can't speak to that personally.
Jack has certainly been successful in building a general perception that bsky is "the Twitter founder's" next social network project, intentionally or otherwise
