The more information the Seller provides in the listing, the happier both the Seller and the Buyer will be.
When a listing says "BNIB" or "LNIB", without any further written description, the Buyer must ask for more info before deciding whether or not to buy. As demonstrated by the responses in this thread, people's expectations concerning the condition of items described as BNIB or LNIB varies greatly, so BNIB/LNIB isn't a very helpful way to inform the Buyer what to expect from a purchase.
YES. Sun, this got me thinking about a listing I saw once that was "BNWB" Brand New WITH Box...and would describe my philosophy perfectly. Like @SOULfulFrOg said, we're all correct...because descriptions are subjective! Further clarification from the seller is a must sometimes, even with pics. Ask!!