Earlier quoted context omitted.
> everyone needs a personal-knowledge-base What is that? Do I need it?
Yes. You need notes that you can search through, and useful information that you've collected. Otherwise you're limited by what you can hold in your head - and as you get older and take on more ambitious work you'll find that's a pretty big restriction. My version of that is spread out across way too many places now - it's mainly https://til.simonwillison.net/ and https://simonwillison.net/ for published notes, 700+…
otherwise all the shine and chrome in the world won't make it superior to a filing cabinet and some free time.
that's the difficulty point for all of these personal PIM type tools, they all have their own biased view on things like file format and 'touchability' of stored data in the (unannounced) hopes of trapping a captive audience; no good.
Open standards, open formats, and a revenue stream that isn't user-hostile -- then i'm in.