Yes they are scammers that own Coinsbit and P2PB2B, they are exposed as scammers because they inflate their trade volumes.

Coinsbit pretends be an exchange that trades $84 MILLION which equates to over $30 BILLION a year

P2PB2B pretends to be an exchange that trades over $167 MILLION which equates to over $60 BILLION a year

Coinsbit and P2PB2B are sending fake volume data to Coinmarketcap, just check their website traffic:

https://coinmarketcap.com/exchanges/coinsbit/
https://coinmarketcap.com/exchanges/p2pb2b/


ALEXA RANK - https://www.alexa.com/siteinfo/coinsbit.io
ALEXA RANK - https://www.alexa.com/siteinfo/p2pb2b.io