Postal forgeries of Marianne stamps

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I have found postal forgeries of recent Marianne stamps used to mail Nigeria-type scam letters from France to the United States. See images. I have a few questions:

1. Have these been reported yet? (I plan to write a brief article) These stamps are offset lithographs with a dot pattern, and not engraved like the originals. They are die cut (not exactly like the originals) and apparently self-adhesive. Similar counterfeits of US and UK stamps, believed to originate from China, have been reported.

2. As I understand it, covers are currently sorted by machine which reads the data matrix on the stamps (if there is one) and sprays on a cancellation with codes: Seven brackets for foreign mail, Four for print-at-home stamps and none for the rest. These covers received no brackets and were not read as having data matrices.

Is there anything published explaining these different codes? What does the four-bracket code do?

Merci!

Farley Katz
San Antonio, Texas

I've found some more information relating to this. Similar fakes of Marianne de la Jeunesse booklets have been reported with similar die cutting. See image and www.timbres-barres-phosphorescentes.fr/V...romper_La_Poste.html ("Faux carnet Lettre Prioritaire rouge -- Marianne et la Jeunesse » autocollant avec pré-découpe ondulée. La réalisation de la pré-découpe est grossière contrairement à l'impression de la figurine."). But so far, none with the data matrices.