Discussion from 6 days ago: <a href="https://news.ycombinator.com/item?id=22130874" rel="nofollow">https://news.ycombinator.com/item?id=22130874</a><p>Discussion from 2018: <a href="https://news.ycombinator.com/item?id=17919297" rel="nofollow">https://news.ycombinator.com/item?id=17919297</a>
I’ve seen this reported as “free” datasets elsewhere also. But the datasets are not necessarily free, commercial datasets are included too. This is a search of the metadata not of the data.