I'm an American that owns an offshore company located in Chile. I plan on opening a cryptocurrency exchange, but wouldn't have any American customers, I'd also block all US IPs as a precautionary matter. A friend of mine has told me repeatedly that I need to comply with the requirements of FATCA. This can't be correct, is it?

The way I understand this law, international businesses only need to comply if they have American customers
https://en.wikipedia.org/wiki/Foreign_Account_Tax_Compliance_Act#Provisions