Why is there no money in a personal annotation system? I'd think any large organization would be willing to pay a lot of money to use a tool that would make its

Why is there no money in a personal annotation system? I'd think any large organization would be willing to pay a lot of money to use a tool that would make its members more productive and effective. In fact, Coda and Notion.so are very successful products and they're basically personal/private annotation systems (modulo storing everything in the cloud). I can imagine extending Coda and Notion.so with programmatic capabilities and adding offline storage and turning them into pretty successful personal annotation systems with premium features for supporting organizational work and collaboration. There is plenty of money in this market when viewed from the right angle.