I have the suggestion of players being able to delete/cancel quests they pick up (such as quests from bottles/barrels etc). This could be a vote type thing.
The other suggestion is for players to be able to vote for someone to be kicked from the crew. This would greatly help as you could get rid of afk farmers, cheaters, annoying/useless people etc. The ship brig is all good and well but it only aides afk farmers as they still receive money & rep while in it and having an excuse to further prolong their inactivity while using a macro or sth similar to prevent being automatically kicked.