Wow!! Touchy subject.
First off I can understand the balance issues that such a thing would present. The last thing I would want to see is the single player experience dissected to accomodate a multiplayer one.
Secondly, to be honest I wasn't even thinking about the problems that mods would pose when I posted this thread.
Thirdly, though, I can't believe the overwhelming NO NO NO to such an idea. It was a hypothetical scenario guys--that was all--I was basically asking if you guys would enjoy the experience that could be had if such a thing were implemented--if it were implemented without sacrificing any aspect of the single player experience we all have come to enjoy and love. Its as if the very mention of 'multiplayer' and 'elder scrolls' in the same sentence is blasphemy to some folks and each time the two are uttered together it weakens the integrity of the franchise. Cmon guys if that mentality governed the growth of the game industry, we'd all still be playing pong.
This is just how the TES community is and has always been. You can't exactly blame the community either. Shortly after the development of Oblivion, a lot of gamers actually wanted some sort of co-op or multiplayer in Oblivion. BGS commented and stated they make strictly single player experiences, and they do it well. If they were to try and make a multiplayer experience, it would only harm the single player aspect, and honestly many agree with BGS's logic. That would make TES seem like just another typical game out there on the market with an average campaign and forgettable multiplayer system. So while many seem unreasonable, those are the expectations BGS has set, and the community respects and accepts them.
Now it would be crazy for there not to be a multiplayer aspect for TES in this day and age, as that seems to be the way the industry is going. Bethesda doesn't have to do it however, which is why ZeniMax Online was created and formed in 2007. I believe they will answer your call for a TES multiplayer as they have been working on an unknown MMO since then.