This is interesting: Semafor is launching a newsletter that's geared toward CEOs and invite-only. There's really no logic behind this other than to create a sense of FOMO that will, theoretically, increase the prestige of the newsletter.

It reminds me of the Raya app, which uses an extensive vetting process that not only causes people to clamor to get into the community, but also results in them using it more often once they finally gain access.