I'd like to spend my time writing a story rather than developing a piece of software. I do like programming, but I lack the necessary energy to follow through with all the debugging. I might just have the whatever-it-takes to write an Inform-style IF and debug it, but no way will I ever write my own parser--I'll leave that to the real programmers.
I think the best way to promote IF and ensure that design systems develop and adapt is to write good IF stories and games. If there's a body of top-class IF literature out there, then people will knock themselves out to make sure that it doesn't die. I think that's why we can all still play the old Infocom games on our super-dooper jazzed-up modern computers. Those games were good enough to save.
Of course, building a new design system can be fun. Back in the early nineties I wrote this huge sprawling authoring system for my Mac and several other pieces of software that only I was ever able to use. I had a great time. I even worked for a time on a space exploration game, but ultimately it all went on the shelf. Just depends on what you want to accomplish.