So, if this is a demonstrated to be a thing that works, what's to stop Google, Facebook, MBS, Jeff Bezos, or any other billionare from simply doubling the money

So, if this is a demonstrated to be a thing that works, what's to stop Google, Facebook, MBS, Jeff Bezos, or any other billionare from simply doubling the money and doing the same thing. The various right-wing twitter alternatives are already there with polished platforms providing the equivalent functionality, why don't they pay Twitter's users to switch over?