To be clear — I don't think we should answer these questions directly. They're just things to think about when writing your vision statement. You don't need to address those questions at all, even. I think it'll be more helpful for people who want to learn about your work if you write something that is self-contained, like an elevator pitch (but a bit longer — a page, roughly — so more like an "escalator pitch"). Full sentences and paragraphs. Assume the audience is a member of the community but not aware what your project is about. And placed on your website, so people in the future can refer to it with ease. I'll try to write up something for my own project as an example tonight, if that helps.

❤️ escalator pitch

To me, a “pitch” suggests the purpose is to convince this (kinda narrow) audience of the project’s value. I’d prefer an answer to “What’s your perspective and approach?” rather than “Why should I want to use this?” The later is also a pretty hard question for a novel project to convincingly answer without a demo.