Twitter was up 20%+ based on his arrival. That is valuable to everyone.
He is the largest shareholder.
He is the largest shareholder.
If he kills the stupid pop-over login box that's supposed to force me to make an account I'll call that lasting value.
Are you saying that the price bump will keep him on the board? The fear of a drop will keep him on the board? I can see that, but in the long run the valuation shouldn't be affected unless he is actually a good member of the board.
The short answer was that yes, because investors will believe he will add value and so will keep him on the board. And investors are the ones that decide.
Separately, it's possible this was done as part of a non-aggression pact.