Absolutely true. People can share their opinions and experiences on Medium. And Medium provides a mechanism for responses. Responses can be made for many different reasons. One of them is when a reader feels the article is dangerously misleading. That reader may feel an obligation to correct the misrepresentation. It’s not a matter of whether I read your article; it’s a matter of others reading your article and being misled. I can and do write my own posts; many of them, in fact. But I also have an obligation to correct others.