I think it’s to do with algorithms. I feel that after someone hits 1k followers…on Medium, maybe 10 percent will read and engage…if it’s a “successful article.” But typically 5 percent or less will read and engage in most articles. Similar with Facebook, if I post something about 10 percent will like it, but if it’s really “popular” then 20 percent or more will like it. But that 20 percent are typically the usual friends who have liked that type/subject (eg fitness) of post in the past so the algorithm triggers those readers and it comes up in their feed).