That answers my question. I will be much more careful about which authors I choose to share a link with in the future. By way of explanation, not an excuse for my mistake, my link posting habit was a natural part of my work in cultural and social research.

Near as I can tell, the authors that appreciated the links I post, are engaged in research and developing their work. I've received some lengthy responses and engaged in solid conversations with these writers and when asked, shared more research and resource links and they've returned the favour.

Nonetheless, you cleared up my confusion and I will heed your advice. I do like to be clear headed, so thank you.