In short this would be preventing online social media platforms banning people from using their services for violations of their terms of service outside of their platform.

IE you said something on Facebook, which got you banned from twitter because it violated twitters rules.

Are you for or against? If you're for, then you might want to lean into how no violation of the agreement between the user and the service has occurred. If you're against, you'd lean into the rights of companies to choose who they do business with.