The taunt system will be enhanced in Artemis 2.0 to be more canonical and more interactive. Right now it's still in rough beta form, but it will go something like this:
Each race will have its own set of taunts. For example, players will be able to insult the Kralien religion or the Arvonian Royal Family.
Each enemy captain will be immune to one taunt. For example, suppose the players tell Skaraan captain: "Your wife looks like a Space Whale!" but that Skaraan is actually unmarried. In that case the Skaraan captain will just think the players are idiots. Once the captain thinks the players are idiots that ship will never respond to a taunt again.
However, as soon as an enemy ship is identified, the players' Science Officer will be able to see a Naval Intelligence report on its captain. That report will include details like whether the Skaraan captain is unmarried, or the Kralien captain doesn't practice the religion, or the Arvonian captain thinks the Royal Family is a bunch of pompous inbreeds.
So if the Communications officer just starts taunting willy-nilly then he/she will often screw up and make enemy ships taunt proof. But if he/she works closely with the Science Officer then he/she has a good chance of choosing an effective taunt.
"Damn the torpedoes! Four bells, Captain Drayton!"
(Likely actual words of Admiral David Farragut, USN, at the battle of Mobile Bay. Four bells was the signal for the engine room to make full steam ahead).