@Ghost said:
Some players will get uppity on an OOC level about it, but the ones that stay will be your good roleplayers who care about things like metaplot, art, and story over whether or not they're getting their super sekret quasi-cheating romance escape.
I think that's an gross mis-characterization. I am against involuntary character death, but it has nothing to do with romance. I care about metaplot, art, and story. But when I'm playing a MUSH, I'm writing my character's story.
You don't read a novel expecting the protagonist to get killed off halfway through. Yeah, sometimes it happens (I'm looking at you, Game of Thrones), but it's the exception not the rule and often times it's not done for "story" but just for shock value.
This is not in contradiction with the idea of telling an overarching story, as @Seraphim73 described. Just look at the expanded Marvel Universe for an example of how to tell individual stories that allow their separate protagonists to shine while still tying into the larger metaplot.
That said, run your game however you want. But understand you'll be potentially depriving your game of a large pool of otherwise good RPers.