TheAlkaizer
Game Designer
It's not a bad idea... imagine having a core system. And you can go on a website and either through a questionnaire or a wizard check certain options to include modules depending on the type of experience you want, and you get a PDF with the mechanics and systems you chose at the end.I've been wonder if someone would show up and compile a version from pieces and parts of different versions, like a custom Linux Kernel.
It's no different then what we kind of already do by ignoring certain rules, tweaking others and borrowing some; but imagine just being able to have a clean PDF for different campaigns/tables/settings.
I've played Burning Wheel recently. It's a lot. But one great thing is that it tells you outright to read the core rules, play with just these and then just incorporate systems and rules as you need them thematically. It made the first contact way smoother.