So I did a Castrum run the other day to help out a friend and get 100 tomes.
We que in, wait for 45 minutes, get a group and go.

As soon as we enter the instance, one of the DPS says "I'm gonna afk now, have fun getting me 100 tomes!"

and then never moved the entire run.

Thankfully we managed to seven-man the dungeon without him, because most of the party didn't want to re-que or were nice enough to stay. A few of us reported him as we saw it as a form of harassment, but we still had to run the whole dungeon down one member.

The duty finder needs some sort of kick member option. Perhaps make it so the party can vote to remove a player.