I think there's a big difference at play here between Barr and Crooks, and conflating the two only to garner points to the tribalistic narrative (what about Barr, huhh?) is not a legal move in my book.
I think, contra karajorma, that the whole Barr situation was well handled. Yes, she had previously done ****ty things and said ****ty things, and thus we can conclude that there *was* a degree of tolerance given to her that wasn't given to Crooks, and enough time so that she could realise she shouldn't speak publicly in this manner before shutting her career down.
There's also the catch that Roseanne Barr is herself the name of a show about herself. She's the one who conflated her personal opinions with a marketable brand / show, so when one becomes untenable, so goes the other.
Which brings me to the point I am trying to express here, which is a bit pretentiously more general. I am deeply skeptical / concerned about the speed to which these social media tools are (prepare for marxist jargon now) turning social relations into relations between things or brands or corporations. Bygone is the era in which someone's opinions were personal and individualistic. No, they must conform to whatever the corporation that owns their ass wants to, or else they may well be fired.
If by any chance their personal thoughts on any matter kickstart some dumb twitter mob against them, there's this kind of green light for campaigns to fire a person, the corporation then duly fires the person arguing that they were some kind of "PR nuisance", which means that right now every single one of our personal opinions are amenable to corporative censorship. If you still believe that this is a "good thing", since it's a kind of a break that stops racist douchebags from dominating the public sphere, I could say "but Trump" (and win that argument by default), but I will not, I will wholeheartedly disagree with you in the very conceptual phase, because here the incentive is not to "be a responsible and upstanding person in society", but rather "how much your opinions are hurting Corporation X or Y".
This in turn changes the whole silly notion of a "marketplace of ideas" into a zombie nightmare of a phrase that becomes all too real. The commodification of personal thoughts and ideas, the worker's alienation not just of the product of their own work as Marx predicted, but of their own personas, their own identities themselves. No longer can anyone still pretend they can work for someone else so that they may live their personal lives with some wealth of their own, no, they also have to live their personal lives in the service of their bosses.
This will only get worse.