I had to look up who Tim Vine was. But he and your brother sound like they have amazing senses of humour!
Yeah, I think you probably represent the vast majority of the VN demographic. They mostly want books with pictures and choices. And here's me wanting to make adventure games without all the tedious walking around :D I'm glad to hear you feel I achieved a good balance though. Including the solutions in game is a small price to pay if it means people may be more inclined to try it out.
Yup, maths is gross all right.