It's not about reach, but about not seeing a problem in being a member of Elon Musk's website.
People are there for reach. Politicians, celebrities. Bernie Sanders, Elizabeth Warren, Jeremy Corbyn, Keir Starmer, Kaja Kallas, Ursula von der Leyen... If they don't see a problem, why should the Cloudflare CEO?
Which social network would you choose if you wanted reach?
There isn't any that isn't run by questionable people.