This is cool but basically impossible to see the code.

Only over Tor, yeah. Have to install it, to see anything. It's a standard system, tho. The cool idea is just to use it for notes, instead of emails.

Basic idea is that it's a client-side machine-learning spam filter that pushes things you have told it that you don't want to read (maybe starting from your 1984 reports) further down. You curate the algo yourself, over time. If the client also has a gold finder, working the other way around, starting from your lists and things you've quoted or replied to, then it would constantly to refine your suggestions, while you keep control of the refinement process and can intervene, if it goes AWOL.