Whats the point of going back if he has to delete his social media posts. If a company can silence who you are when you are not a work, you loose, even if you win.
He is also able to afford rent and food.
I mean, you've got social commentary about "the court said this was a solution, let's see how it goes" and "everyone says getting the courts to order your employer to give you your job back is a pyrrhic victory, but what happens when you do it?" and you've got the cringe angle of the awkward interactions with HR and the bosses who fired you, and the justice porn angle of bullying a bad employer.
Plus if he decides he doesn't want the job any more, he can always put the posts back up and see what happens.