Primary topics are music, history, geography, health, art, and science but sometimes personal things too. Topics are shown by searchable tag on the main page.
My “why” is just to be interesting.
I post things that interest me, without concern for what is popular or in the news.
Writing something worth reading inspires me to do research so that I know a little bit about the topic. Not an expert on much of anything but I don’t try to be. I learn and grow from that. Hopefully so does the reader.