I seem to recall at some point that that old Twitter banned the account of the sitting President of the United States.
Later, Twitter banned a comedy account, the Babylon Bee. That pissed Elon off enough to buy it.
Both are back on Twitter now, both the comedy account, and the politician who will be President for a second term in January, having won both the Electoral College and the popular vote.
That's just two examples, but I would call them salient ones.