Simple. He didn't shit-talk Truth Social in a legally binding way and then have his bluff called by people with enough financial resources to survive the lengthy court battle.

He probably experiences less personal financial loss from running Twitter into bankruptcy now that he has been forced to buy it. He even gets to use it as his personal ego-stroking machine in the meantime.

But he may have experienced significant personal loss had he decided to continue fucking around with the SEC (or was it one of the other agencies?), whom he had previously pissed off.

If you view his words and actions through the lens of what will make him the most money or lose him the least, his actions make sense. Add a significant dash of arrogant impulsive invincibility too. He's comfortable telling us about Twitter's financial problems because starving it gets rid of it and let's him focus on his other vanity projects.

It's not like they can send him to jail for being a bad manager. It's not like he's going to pay his bills. It's not like he even used all of his own money to buy Twitter in the first place. What does it matter to him?