whats so strange about that,they say they have their own code made from scratch and they want to protect it with 4 patents so in future there won't be any other projects using their code.now is closed source and there is no proof that exist but after they deal with patent and it gets on hold they said they will release the code and start testnet on their new code which apparently can process 10k tx/s.so for now its all in the air,could be scam could be real...who invest in xby and it turns out its real deal they they hit jackpot if it turns out scam they lose all pretty much,so all in all its worth the risk. there is fud going on for this project but even eth back in the days was called scam so lets see how this turns out,few months is worth the wait