There is a due diligence reseach report on B21 on https://www.crypto-compass.io/

IT IS FREE ACCESS; you do NOT need to register to have access. Registration only for the club deal.

ann of cryptocompass is  : https://bitcointalk.org/index.php?topic=3178063.0  you can give your opinion about B21 research report there

a signature campaign paid in BTC will be launch quickly for cryptocompass