The American Justice Woodbury did not use quotation marks
and the wikiwookie article cites him as the first to coin the term.
Once again see 1845
As I said earlier the "traditional meaning" covered copyrights and has recently expanded to cover patents and industrial related design matters.
My usage of the term in the context of a discussion of copyright is not erroneous though contention may attach to it amongst certain scholars.
Similarly, some scholars may find the term "Bill of Rights" contentious on the basis of legalistic pedanticism. That is their prerogative. But we still know what is meant by the term.
Thousands of solicitors and barristers in Australasia, Great Britain and probably Ireland also, would recognise what is meant by the umbrella term "Intellectual Property" and if the US was a signatory to TRIPS agreement, any US lawyer conversant with copyright law would be aware of it too.
I think Dale is corrrect to not allow full quotes of exotic articles without the author's position. I would have taken that for granted. It is not a policy matter for Dale for he has no discretion. He is beholden to not allow it in his forums and to make sure it doesn't happen.