>_>
ok, so I have my main character, and then I have alts.. spanning over 4 other accounts, I often have two running at the same time, I can interact easily with people on both at the same time, hell, I even make them RP with each other, I really don't see why people claim it's hard to do, sure you can only move one at a time or make one speak at a time, but it's still playing isn't it? they still run around, do their 'job' greet people, scratch their bum and all that jazz.
with enough determination and a strong enough computer you could play out an entire RP by yourself, then save the log of it, hey presto, instant story no editing needed.
I've run 5 clients at the same time before, it got a little sluggish but to other people, they were just more people in the world, like what they are really used for, I don;t see it as cheating, to me it's just a little extra, something out of the ordinary, and challenging
Edit: because my typing sucks