The merged entity known as Centurylink/Lumen/Level 3 is a common carrier unlike Twitter, Facebook, etc, they have no need to cease serving anyone and would lose

The merged entity known as Centurylink/Lumen/Level 3 is a common carrier unlike Twitter, Facebook, etc, they have no need to cease serving anyone and would lose their status as a common carrier if they were to start moderating the content of the data that clients move over their pipes. If served with an injunction by a court, or if the user failed to pay their bills, those are the only cases in which you would see them stop serving a client.