Leech
From Guild Wars Wiki
Leeching is the act of attending a cooperative in-game event or mission without contributing in any way. This is usually done by joining such an event and simply going afk, waiting for other players to finish.
Leeching is looked down upon by many players, as it is a no-effort way to reap rewards and puts the team affected by leechers at a disadvantage.
Leeching is a reportable offense. Players who exercise leeching need to be aware that they can become Dishonorable if enough players report them.
Places where leeching is a particular problem:
