You are talking about just a map of and area with a legend showing important NPCs right? If so it’s a great idea. I would suggest maybe also showing spots where certain creatures spawn. That would help find good spots to find nick items and pets to charm. I like the idea!

Don't forget to include that shadowy area in Green Hills County, outside Barradin Estate, where nobody, friend or foe, dares to tread... because the invisible walls stop you.

I really like your idea... I had considered putting up a thread that listed all of the game's bugs.
When I saw how many there were (like a kazillion), and notations that updates about fixes were lacking, I decided against it!
It would take a decade or so to sift through all of them, and weed out the fixes and updates.
Presearing itself doesn't have very many though, so it wasn't enough for a stand alone "guide".
However, along with the other glitches, it would definitely be a fun addition to the editions  .

I have time to decide where they will go too, there's still a couple of weeks to go before the poll is closed.
Meanwhile I'm finishing up other stuff I had wanted to attend to for quite a while.
My momentum took a nosedive at the end of last year, with a location move and all of the holidays.
That along with other distracting stuff has ended though, so things are back on track to build this forum up again.

I can either do a separate trivia page at the end of the guide,
or add each bug/glitch to the end of each location guide(etc) where they occur.
If you or anyone else has a preference about that, just let me know! 
And..Thank You for the input Love, it really is a welcome suggestion!

If anyone else can think of anything else, please don't hesitate to ask!