I read through the link, and it contains a lot of details I hadn't seen gathered well into one place.
It differs some, or perhaps merely shifts the focus a little, but there are a couple of common elements.
The docs came from the Niger embassy. They were created with some egregious errors that anyone could see, specifically, bearing a signature of an official who hadn't been in office for a decade.
Since a Nigerien diplomat would have access to up-to-date signatures, and would certainly know if someone was out of office for 10 years, I would say that the forgeries were designed to be discovered.
That much is clear.
I agree...and there's more. The forgeries were made in the last months of the year 2000 but were not put into circulation for almost a year. Why?