Rule 13: Illegal Communications

{A} You must NOT use a CB station-
[1] in connection with activity which is against federal, state or local law;
[2] to transmit obscene, indecent or profane words, language or meaning;
[3] to interfere intentionally with the communications of another CB station;
[4] to transmit one-way communications, EXCEPT for emergency communications, traveler assistance, brief tests (radio checks) or voice paging;
[5] to advertise or solicit the sale of any goods or services;
[6] to transmit music, whistling, sound effects or any material to amuse or entertain;
[7] to transmit any sound effect solely to attract attention;
[8] to transmit the word “MAYDAY” or use any other international distress signal, EXCEPT when your station is located in a ship, aircraft or other vehicle which is threatened with GRAVE AND IMMINENT danger and you are requesting IMMEDIATE assistance.
[9] to communicate with, or ATTEMPT to communicate with, any CB station more than 155.3 miles (250 kilometers) away;
[10] to advertise a political candidate or political campaign (You may use your CB radio for the business or organizational aspects of a campaign, if you follow all other applicable rules);
[11] to communicate with stations in other countries, except stations in Canada (on General Radio Service).
[12] to transmit a false or deceptive communication.
{B} You must not use a CB station to transmit communications intended for live or delayed rebroadcast on radio or television. You may use your CB station to gather news items or to prepare programs.

Small part of me thinks that this section of the CB radio rules are a useful heuristic for communicating on social media. with exceptions of course.