Yes. Your phrasing is a little different than I would use, but I think you've captured the gist. I'm not seeking out articles I haven't read to comment on, but rather I'm here for the great aspects of our community found in the comments.
I think this thread -- where a portion of the debate is about details of the headline answered by the first sentence of the article -- hints that many people are using a similar modus operandi.
My mental model is
- comments are more entertaining
- comments are shorter
- comments highlight the strengths and weaknesses of the article
- comments expand the scope of the article and point at interesting related items