Thing is, of course, that you can't "create maps", and to release "the editor" (suggesting that they even have an editor) wouldn't do anything to fix that. I'm all for mod support and I'd love to take a crack at certain things, but custom campaigns ain't gonna happen. People rarely even make custom campaigns when the tools are there, in systems where it's possible (Oblivion/Skyrim, FO3/FONV, D:OS, etc).
How difficult would it be to make a mod that allows stats from items to stack? More importantly, maybe this could be the first thing you try to "take a crack at"!
I've never been a huge mod user but this is the one thing that drives me nuts about this game. I suppose I played too much diablo II haha..