Earlier quoted context omitted.
The CEO of SpaceX owns Twitter.
I'm aware. What does SpaceX gain from the exclusivity?
They also might be wary of platforms like YouTube which host "Elon Musk wants to give you Bitcoins" scam videos, which Twitter has a stronger incentive to be aggressive in removing because of who owns it, and then there is value to the company in being able to say "none of the YouTube videos are legitimate, you can only see it here."