Yeah, I saw the open letter. Not convinced. In that open letter they even link to Politifact - their incestous "fact checkers" for the stories they make up on a daily basis. For every one of the 1000 signatures I'm sure Rogan could get 1000 "pro" signatures for himself.
And, to be fair, the MSM broadcast the Trump Russian Collusion conspiracy 24/7 - did we see an open letter then from these same fine people? No, we did not. Conspiracy theories are just as much a part of free-speech as anything else.