I've got a contact who's very excited about "cos coin", he wanted me to check it out, but it looks very suspect to me:
https://www.cosetek.com/I can't get much clarity on how it works or what it's supposed to do. Does anyone know any more? He says you have to pay to join and those who sign other users up get payed as a reward, which imediatly rings alarm bells.
It's definitely a pyramid scheme in the disguise of crypto currency business. I would suggest to stay out of such program available in the crypto market.
Anytime you see some platforms asking money to join and get rewards for bringing in new people, is definitely a pyramid scheme and needs to be avoided.