Such a weird perspective. The author thought they discovered something that true and interesting and kind of fundamental but wasn't already published, but didn't think it was worth publishing to the math community?
Thinking about maths is fun, and some people do it for leisure and write what they find in innocuous places like blogs. Usually the things you come up with are already well-known by a different name (as was the case here), so one would usually not publish something like this.
Think of it just like a random blog post on someone’s thoughts. Just because it contains maths doesn’t mean it needs to be published or not, it can be free to live its own life.
