I really can't understand why this happens, but if you look at my blog I have plenty of posts with 0 comments from real people.

I do understand. Because people are selfish and greedy. Most of the Steem blockchain users are focusing on writing blog posts, but they do not care about other people's blog posts.

The statistics are backing up this statement. There were 8 124 posts created on 2020.01.23, but the average number of comments is only 3.74. If we take a look at blog posts, then we can see that most of these comments are bot (or spam-like) comments. Sad. And people wonder why the number of the daily active users is constantly decreasing since months.

My advice is to do what you like.

I like blogging, but I do not like being ignored. Especially, if I put hours of work into a blog post. Maybe I will stop putting hours of works into my blog posts, and I will write my blog posts only for myself. Or completely stop blogging. It is simply not worth it to put hours of work into my blog posts, if no one else cares about them, except me. If even I do not care, then it is not worth it to put any kind of effort into my blog posts. I guess that I have to forget about real human comments under my Steem blockchain blog posts, so if I would like to get interaction, then I will write something on Facebook.