Problem comes when people try to apply a rule where it does not belong. Piracy rules should be completely separate form PVP rules ... they deserve their own sections within the rule set. And the rules need to make clear that piracy is a specific event between a pirate (fighters, bombers, gunboats) and a trade vessel (freighters and transports). The rules must also make clear that PVP is a specific event between two or more combat vessels (fighters, bombers, gunboats, etc ... NO freighters or transports in the mix).
What about pirating in a transport then? Or a freighter and a fighter are fighting?