To answer your question in the title, it is still worth it to me, as I get a lot of joy by writing. Pretty much as you put it, there's value to me for writing for it's own sake. Even if no one is reading. It's a cherry on top of someone stumbles upon my posts.

It just so happens two individuals have reached out to me in the past week, saying they enjoyed what I wrote and one of them cited that I saved them time. That just feels incredible.

To answer your questions I don't find my readers at all. I share my content when relevant on reddit or here. I keep writing because I enjoy it.

I'll link my blog post and will remove if asked to:

https://www.greghilston.com/