I also began to notice that there were people commenting on my posts that were clearly feeding my entire blog entry into ChatGPT asking it to "Write a comment based on the blog entry"

that is very interesting, because I have never had the idea to use ChatGTP to make the comment, either one is a bit lazy or genius, still in a very thin line. 😅
I think a short and genuine comment will be better than a long one, but made from AI isn't it?