Quote: 3.3 Aggressors are not allowed to issue further demands during the same encounter after the trade vessel has complied, or destroy a trade vessel prior to issuing a demand, in system or local chat. "Halt" on its own is not a demand, however, a trade vessel can be destroyed if they refuse to stop after being asked to in the form of a proper demand.
Consequences:
As a pirate, you are allowed to stop other vessels. However, you cannot destroy them without a making a demand. Your guns have fallen off. Don't do that again.