"The troll farm also had its own "Facebook desk," whose function was to relentlessly push back against the platform's administrators who deleted fake accounts as they began gaining traction. When Internet Research Agency employees argued against having their accounts deleted, Max said, Facebook staffers would write back, "You are trolls." The trolls would in turn invoke the First Amendment right to free speech — occasionally, they won the arguments."
https://www.businessinsider.com/former-troll-russia-disinformation-campaign-trump-2017-10?fbclid=IwAR3bN_eB9CqF-0wQDBk3O0Cc2CsYUrU5Pr5ffp8wzqjo5XsZ48Aympk8DYg