I think there's a subtrope that deserves examples, dunno if this is the right place to propose it, but.. a lot of more recent games (Rune Factory 5 and Xenoblade come to mind) have two separate categories of NP Cs: Named ones who actually matter, who you might find something out about and need to get relationship points with or something, and unnamed (or at least more generic) ones who exist to fill out space and make the towns look more realistically-sized. Twilight Princess had the villagers in hyrule castle town that you couldn't even talk to.
With the acronym and the full name: I figured the major purpose of the page was to explain the initials. Like if you could hover over the initials and get a pop up description spelling out the acronym but in our case you have to click on the wick. People commonly use the acronym because they know all about it and the meaning of Non Player Character so it's a page for those completely out of the scene.
There is a Fredric Brown short story in which the protagonist finds out that most people in life are "non player characters"; he, like other "player characters" was supposed to have been conditioned against being able to discover this, but something had gone wrong. If anyone can remember the title, it would be worth a mention.