Yes, I believe some U.S. citizens participated in this scam ICO. They could bring SEC into play.
Many of my friends invested on this ICO during the late 2018 and they are so disaapointed with the result of their investment. Im not sure whether the team still developing this project but I still seeing their ads on coinmarketcap. Maybe they already give up and just waiting for bankruptcy.
The team has been running away with all of the money mate, there was no reason for this platform to be bankrupt. You should aware if the team will never try to continue the development of this platform. The site and tele group have already gone forever.