Have the info pages been introduced recently? (or have I failed to see them so far?).
Actually, this feature was introduced in 2010:
So it predates the site by two weeks. This site—and its Community user—were created on 2010-08-05.
Visibility has also been noted as a problem before, on other sites at least. (Nothing has been changed however.) Here are some examples:
No, they are as old as the hills. Looking at the history of the single-word-request info page, for example, there is
That one is over six years old. It's now at revision 17.
These are the pages shown clicking the "Info" link in the tag pop-up, although not every tag has had one written yet:
Perhaps that "info" link needs to be re-worded. I don't know why it's not "more info".