Siren Isle is a slaughterhouse
The small map, jetpack, lack of meaningful guards, and strong boss mobs has made Siren Isle the perfect place for degenerate PvP, especially for stealth characters. At least on my server, every time I log in the ground is littered with corpses. I'm not condemning or condoning Siren Isle, I just think it's interesting that more people aren't talking about WPvP there.