Nothing new here, all kinds of newbie accounts and clowns claim COSS is a scam.. just like they claim coinbase is a scam, polo is a scam etc...
The worst part about crypto is that clowns have a voice too, unfortunately it has to be heard. On every coins page you will find a disgruntled clown talking about scam and what not...

sad realities of crypto. People are just too jealous of others success