I use information from Google Analytics to monitor and improve this site.
This data helps me know what blog posts and pages do well. Since I share my work across many social media, it helps me know where most of the traffic is coming from. It also helps me understand my visitors, for example - If I see a majority of my visitors are on mobile devices, I will work on improving mobile support across my site.
All the data I collect is anonymized. That is, the data is not associated with your name or identity. To be blunt, I don’t need to know who you are or what you do outside my site.