Hi mate, the problem is, your work will always escape someone will always share it, so you have to build that into your calculus. Given that you cant stop this, and could hurt your games subscriber growth if you do try to do it, take a leaf out of "A wife's phone" have a basic core story to tell, and then let your subscribers have a hand in some way in telling the story
do polls for who we see this update, what route gets updated etc, but dont let it totally dominate your own story. subs get really happy when they feel they are "directing the movie" and many are happy to pay to do it.
it also really increases your interaction with subscribers and helps build a "family feeling"
Anywaays, I appreciate you responding positively, and wish you good luck for the future