I don't think I need a privacy policy since the app is designed so that nothing gets logged anywhere - it works by hitting the Algolia API directly from your browser, but the filtering happens locally and is stored in localStorage so nobody on earth has the ability to see what you filtered.
The API it uses is https://hn.algolia.com/api/v1/search?tags=front_page - which is presumably logged somewhere (covered by Algolia's privacy policy) but doesn't serve any cookies.
> Why do you do these demos if you aren't upfront about all the things the LLMs didn't do?
What do you mean by that?
You mean this thing? https://tools.simonwillison.net/hacker-news-filtered
I built it literally minutes before I posted it, and I built it specifically for this thread.
Other people post my stuff all the time - if you take a look at this list here, very few of them were submitted by my user account: https://news.ycombinator.com/from?site=simonwillison.net
(Currently only one of the posts on that page were by me.)