There is some evidence that Milei intended to enable the rugpull, because it's unlikely he could have been unaware of how his tweets promoting and then withdrawing his support would affect token price. It's facile to use mechanisms that aren't linked to identity to undertake financial shenanigans for people as informed and empowered as Milei, and this makes gut checks and bias useful where deception is a tool of the larcenous.

You have discussed how income taxes are easily dodged by the borrowing against equity available to the wealthy and impossible to the rest, so you cannot be unaware that offshore trusts and similar mechanisms can be used to profit insiders from the information they are barred by law from taking advantage of in their name. Burying beneficial interest in a bewildering branching chain of obfuscations is a time honored tradition, and Milei is unlikely to be incompetent to do so. Whether he has the moral rectitude to refrain is the question, and that is shown by the assumptions he is attempting to swat away to be considered unlikely by the wisdom of the crowd.

Of course, proving it is another matter.