You seem to have a very narrow view of what is a relevant or a valid comment. Just because a counterargument doesn't completely refute the original comment, or "introduces" new concepts, doesn't make it irrelevant or "misdirection".
Someone compared treatment of X 20 years ago to treatment of Y today -- seems pretty natural to bring up treatment of X more recently. You can't just say "the original comment didn't mention it so you can't mention it either".
I don't see how your accusations of bad faith are warranted.
If your doubts are true, why did you have to introduce an analogy?
I feel I have a pretty open view.
And, there's no definition of a 'valid' comment. I'll address points, raise points or whatever. Sorry, I'm not in the realm of 'valid' comments, never was.
>I'm arguing that policy preferences around copyright infringement have changed in general.
Perhaps they have, and I take on your take on that. In the end you were replying to me and the original poster so respect the spirit of those posts.