Quote Originally Posted by CarmenSandiego View Post
Cons
1) Increased server activity.
You would cause more lag to a server doing zones in dungeons.
2) Classes may be unbalanced
Classes are not balanced around 1v1, duels also don't have to be just 1v1 either. I would support up to 5v5. However I wouldn't allow dueling within city limits besides special designed places within the city, or bars. Although I would also like it everywhere just for roleplay and environment purposes.
3) Harassment
You can already harass people with other things, people are already being harassed with things like gil spammers and other things that are much worse. People also harass others in dungeon finder as well, should we not have features like this because of harassment? No - Blacklist should remove someone from challenging you to a duel. There should also be an option that is preset for you that doesn't allow duels.
A case against all cons though.