You can download the .csv from the about page and filter / explore the data however you want using an agent or even just hand written Python.
This is actually BETTER than HackerTube, which doesn't expose something like this on the front-end AFAICT. Maybe the reason you didn't look for a .csv on HackerBooks is because you checked HackerTube first and developed a little bit of learned helplessness while I checked HackerBooks and its comments first before checking HackerTube
Oh, top tip. I didn't even try the about page.