Well, I think it would be very reasonable for a government to compel Twitter to allow access without an account to at least certain accounts that dispense infor

Well, I think it would be very reasonable for a government to compel Twitter to allow access without an account to at least certain accounts that dispense information that is of real-time public interest. e.g. In the case of some recent wildfires here, updates about the emergency were primarily available on Twitter. The sanest implementation would probably just be some nominal monthly charge that an account holder can pay to Twitter to have their account publicly accessible to all.