They haven't been censored, though I note that they are resorting to more open platforms, like Substack.
Taibbi and Greenwald are both quite concerned what is happening in law and media. They are still liberals in policy and outlook, but increasingly sympathetic to the conservative assessment of the national discussion. Please note how quickly liberal outlets have moved to discredit them with personal attacks - rather than factual refutations - shortly after they defected. Leaving the plantation is unforgivable. If you have always been a conservative you are merely deplorable, worthy of contempt but not much more energy than it takes to ignore you. The long knives really come out for liberals trying to make an Unapproved Point. Tom Friedman, who I think is a smart and observant person, has had to backtrack many times over the years to keep his standing in The Tribe after making an intelligent observation. He lacks courage.
This is my beef with conservatives, BTW, who keep picking the wrong hills to die on, railing about the lights going off and pipes bursting in Georgia or single-incident and unconfirmed reports of ballot shenanigans. I get it that they are devoted to principle - and I do not say that with the least sneer, they are - but after a couple of throws, those were never going anywhere, however much people believe they should have gone somewhere. While you were sleeping this other censorship and silencing is going online but you have spent your energy on the other stuff and are now just disgusted and discouraged.
What is the cause of that, I wonder, that throughout my lifetime the conservatives have been often right in the main but uncannily pick the wrong hills to die on? It is likely I am cherry picking my data on that, working only from a frustrated impression. Still, it is worth considering. At minimum, conservatives have not been surgical in their ability to target cancers.