I appreciate your concern for comment quality! but this is the kind of point that depends on how someone is using HN overall.

If an account were doing this repetitively in a way that didn't feel like genuine conversation, that would be quite different than a case like this, where there's no sign of such a pattern and the account is using HN quite as intended - randomly walking through topics of curiosity. It seems more likely that nrjames just happened to remember those movies* and wanted to make sure they got a mention in the thread. That's fine!

I'd say this guideline is relevant here: "Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith."

https://news.ycombinator.com/newsguidelines.html

(* as have others, e.g. https://news.ycombinator.com/item?id=46652703)