I too remember Coss.
Coss would of never gotten big back then nor rasied money if not for the ICO hype and the sucess of BNB and Kucoin shares.
They had a nice little site showing returns and everything.
But they started it all wrong, never had anything going for them and waited way to long to list. It had fiat but by then more exchange we adding fiat so the alure of it went away.
The community really tried to make it work, creating a trading bot and all lmao

One of my worst buys along with cryptobridge. Luckily didn't lose much of it....

!tip 0.1 simple