Jack provided the initial funding 2 years ago, but despite all the chatter to the contrary, it doesn't appear to me that he's involved in the company much these days. On Bluesky, he's not very active, and it's not clear he believes in the platform. His most recent post (https://bsky.app/profile/jack.bsky.social/post/3jy3cth45t22r) was 23 days ago, and states that Bluesky "isn't a [Twitter] replacement". He seems to be much more into Nostr these days, judging by his tweets.