What exactly would we be tracking via Pinboard? Bookmarks created per day?

Also pretty sure the best bookmarking app is https://larder.io

+1 for Pinboard. Heavy user here for years and yes, bookmarks created per day would be a nice metric. Pinboard is another important indie dev worth supporting. 👍

Tho Larder does look highly attractive :) – I’m not a dev, so not in the target audience for Larder afaik

It’s still useful as a general bookmarking app if you’d like to give it a go :)