The buttons don’t do any tracking just from existing. They only exist to encourage a miniscule number of people to repost your content on social media, and in the event a share comes from that, they may include affiliate info
All the useful information comes from the tracking scripts, which developers are also placing themselves because they are infinitely more useful. They tell you where visitors are coming from, how/if they are converting, everything they are viewing/interacting with on your site, and what the ROI of your ad spend is. In addition to telling you if someone clicked the share button.
Tracking pixels have been decoupled from the “share” buttons for at least 10-15 years
Half of them haven’t been active in 2025, and the first active member i clicked on’s commit history is “fixed a typo on the website” once this year, and once 6 months ago
It’s a shit metric because people spam OSS repos with “minor text fixes” pull requests so they can slap “inkscape contributor” on their CV.