Probably this

A significant investment from The Kingdom Holding company itself, who previously had zero control over Twitter and who wouldn’t really like another Arab Spring to happen.

Of course there isn’t much more evidence than that, but what do they get out of the deal? Why would they be interested in throwing down that much? Did they really think Elon would turn a profit when the whole world could see the writing on the wall as this all went down?

Yeah, the theory they want to tank it is a bit tinfoil hat, but as conspiracies go it’s really not that far fetched.

They did chop a guy into pieces for his reporting on them and their business; is it really so far fetched to think they’d do something like this?

I’m not saying he’s tanking Twatter on purpose.. but what would he do differently if he was?

I mean sure he might be a useful idiot- but we’ve seen plenty of old money world powers thrusting egotistical useful idiots in way over their heads to destabilize the balance of the world in the past decade…