You break highlighting and copy-and-paste. If I want to share or comment on a piece of your website... I can't. I guess this can be a "feature" in some rare cases, but a major usability pain otherwise.

I'm not a fan of all the documentation and marketing content for this project evidently being AI-generated because I don't know which parts of it are the things you believe and designed for, and which are just LLM verbal diarrhea. For example, your GitHub threat model says this stops "AI training crawlers (GPTBot, ClaudeBot, CCBot, etc.)" - is this something you've actually confirmed, or just something that AI thinks is true? I don't know how their scrapers work; I'd assume they use headless browsers.