Really fun article to read, and I'm not even that interested in math. Somewhat unrelated, but I cant help but ask why authors are still using Medium as opposed

Really fun article to read, and I'm not even that interested in math. Somewhat unrelated, but I cant help but ask why authors are still using Medium as opposed to Substack or some other alternative. The hook of the post happened to interest me to the extent where I went looking for an un-auth-walled version, but I'm sure there have been countless cases where I have simply abandoned it because I wasn't invested enough to seek out the mirrors -- and I'm sure no author wants that.