Many European ICOs recently that I saw, they all state in their ToS that the US citizens can't participate. Why?
ICOs and any kind of investements that would like to operate in the US or to attract US citizens are required to submit documents and requirements for their permit per regulations by the US SEC or they will face prosecution by the US Government. I just wonder why ICOs could not comply about the requirements to think there are lot of potential US investors but maybe asking for permit to operate in the US in not that easy so they choose to ignore the US citizens.