Please adjust the duty abandonment penalty. I was in a horrible group earlier with a paladin who could not keep hate and was not current on his class specific quests (so he had no shield). Someone left the party - which should have paved the way for me to leave the party as well - but I was in combat. Once the first person left, another was added RIGHT as I was clicking to leave and so when I exited the "full party" it gave me the debuff.

Once someone else has already left the party. There should be a few minute window where others can leave without penalty.