Part of me thinks that's the point, I don't believe Jack set out to make something that could be a meaningful threat to twitter. It seems like it's meant to be just big enough to suck the oxygen out of the room for other twitter alternatives. (Obviously that failed, now that threads is topping download charts and twitter is sitting in the 40s.)

The man has enough access to capital and can easily hire folks with the know-how to make a service that can scale. That fact that this hasn't happened says something.