It's because their blog is hosted on blogger.com (yeah, weird decision), which is owned by Google and does that by default.
I also have a blogger.com blog.
Why? Because I had it for 20+ years, and I still didn't find an easy way to automatically migrate it to WordPress.
alt Hacker News
I also have a blogger.com blog.
Why? Because I had it for 20+ years, and I still didn't find an easy way to automatically migrate it to WordPress.