He did it already before Twitter was a huge thing to him.
He did it with Tesla customers who were unhappy, to the degree where one who was particularly open on social media experienced that his car suddenly couldn’t drive, because Tesla disabled it.
He has also threatened to sue media outlets for bad press.
https://www.cnbc.com/2022/08/25/tesla-threatens-to-sue-critic-over-ads-showing-cars-hitting-mannequins.html

It’s also a double standard he holds, as he doesn’t shy away from calling a rescuer a pedophile because he criticized Musk.

So it’s OK when he does it, but others cannot, not even when they are right.