Thanks for the heads up. In the case of what I posted; I felt it was a fair response, because I MYSELF would have to do something similar.

I bring up a subject and name a category, place, or very specific thing.
First thing a very interested reader might do, is to find references to learn more. If he posts that reference in a comment to my own post; I think it adds to the conversation.

I don't think this person is a bot or plagiarist, for what I have seen in my posts as comments from this individual, thus far. In fact, he has often added a great deal I might have forgotten to include myself.