A side note:
When is the duel server operational again? It was on for one day and then stopped working again. Bug testing?
Anyway, back on topic. Rules should be enforced somewhat, but it's up to the people dueling to act decent and not be a douchebag just because they can. I personally try to be as nice as possible to new players. As in, I don't face hug and spam them to death the moment timer hits "1..." as I've seen a lot of people do.
BTW regarding xp/upkeep, will that be removed from duel servers?