[Inkscape-docs] question about extra galleries

Hi Friends, I think I've asked about this before, but the answer didn't sink in, and it still confuses me. When I look at the Tutorials filter in the gallery (https://inkscape.org/gallery/=tutorial/) at the bottom of the page, in the right column, are a bunch of extra galleries, all empty.

Similarly, the SVG Tool filter (https://inkscape.org/gallery/=svg-tool/) also has a bunch of empty galleries at the bottom. Inkscape Template File filter (https://inkscape.org/gallery/=inkscape-template-file/) has a couple of them too.

I don't immediately see how those are being created. I would guess someone found how to do it, and just made some galleries. But if they're empty, I wonder if they should be removed?

Thanks, brynn