I personally can't say I give a shit about anything Hunter Biden has done. I feel bad that he was named Hunter I guess, dude never had a chance.
Anyways, the point isn't about the specific story really it's about the way Big Tech reacted. And twitter went through a myriad of excuses, from "hacked material" to "personal information" and "not verified" for doing what they did.
And yes they are, for now, free to do that. What is alarming is when they choose to do this kind of stuff and when they do not. Melania Trump gets recorded without her consent and that can be on twitter and you can link to stories with it no problem. Unverified Russian bounty story wasn't dealt with like this. Trumps tax story wasn't dealt with like this.
Twitter even prevented government officials from tweeting out the story(press secretary was locked out of her account, not sure if she still is). It was only a matter of time before they went too far and perhaps this time they have. It's almost irrelevant now whether or not the Hunter story turns out to be legit. The simple fact is they do not treat other stories they do not know to be legit like this and we know why.