Why Bloggers Still Don’t Provide an About Page?

The default About page of the blogs hosted at the Micro.blog microblogging platform contains the following placeholder text:

This is the placeholder text for your about page. You can edit this text under Account on Micro.blog.

Googling this string returns 145 results as I write this. It means over 140 bloggers didn’t provide any information about themselves or their blogs. And this is just a single blogging platform.

Why bloggers still don’t provide such a basic resource as an About page in 2019?

It’s completely understandable they may not want to give away any personal information for privacy reasons. But, if a blog is public, why not help potential readers and write at least one or two lines telling what are the main topics it focuses on?