Let me clarify then.
The existence of a properly expanded and explained P&A section, alongside any other bonus information that may exist on the page pertaining to the topic (such as Notes at the bottom, explanation blogs, etc.) would make such an addition useless. And if said properly expanded and explained P&A section does not exist, then the effort should be put in to make it so, because if what this thread suggests would be implemented, it would not simply erase the necessity of a properly-developed and thorough explanation of the page. In all scenarios, its existence is invalidated.
Also, and I fully admit this be personal preference, but the proposed way of implementing it just...doesn't look good. "Dimensionality: Ex" seems awful as written on a page, frankly.