New Gamemode? (Dueling)

[Arilarin]

Well, I'm not exactly sure if this has been posted YET, but here is an interesting idea:
Duels are player against player (1v1) and can players can be forced into a duel, or opt into a duel. To opt in, they say
/duel optin <any player name> r|nr. R means Random Duel, NR means non-random duel. If they do not put in a player name, they are defaulted to Random.
(Optional Server Config): If a player swears with another player's name in chat, they are FORCED into a duel with the other player. If they win, they can keep chatting. If they lose, the are muted for the remainder of time they are on the server.
(Could be implemented): Duel Games are games witch any player can participate in with their teammates. It can be any server enabled gamemode. 2 Duel Games can be in session at once (otherwise it could get very lagged up!).
To win a duel gamemode, your team must win X number of duels, or complete Y Duel Games.

[MrHaaaaaaxFF]

Yes, it's already suggested, but not sure about if it's on the DNSL. Search plz :D

[Paratrooper]

Probably just a new gamemode.

Loser will be replaced by another contender. Whoever survives last wins.