In the really old days, people used die rolls to add combat. Then the Devs made actual mechanics to make it work. One can debate if it is fair, or fun, but fact is, it is ingame already. Sure, Some magic is weaker in Duels, and that may (or may not) be addresses someday, but fact is, if you train for a month IRL on being a juggler, you will probably not be able to defeat Someone who can bench press a truck and knows how to fight a little IRL either. So if you can not wipe the mat with someone, I suggest not fighting them. RP someone whose attitude matches their skills, or get used to losing a lot. I have a low level alt who acts like he is tough, but is easily defeated, and that is RP also.
We do not all have to be Gandalf meets Zeus. Not to many years ago we would Duel each other and see how we compare. Some may have higher numbers, but others would be better at the actual fighting.
I do not think we should toss out the mechanics for die rolls. You can do that in an IRC room and not even need a gui.
If you find a group that likes to do that, more power to you, but I will Duel if RP makes sense to do so, and win or lose based on skills, my own and my character's.
Btw, there used to be rules for playing card games and such in the tavern... People still doing that?