This is the fourth instalment of the series, so these weren't the first question asked to the engineers. But yes, a lot of comments have been from people not s

This is the fourth instalment of the series, so these weren't the first question asked to the engineers. But yes, a lot of comments have been from people not seeing the reference to the earlier parts in the beginning of the post, or seen the earlier threads on HN, and reacting like you.