Just checked it out. The coin network is old. You can't call the coin a scam. The guy was a bit over enthusiastic but he gave a way for the long standing holders a way to dump their coins. This can happen to any coin with a user base that has no belief in the coin. They just dump at the very first opportunity. The youtuber and his followers were successful in pumping up the price. But the rest of the community did not believe - they just cashed out the opportunity. They could have waited and slowly release their coins. Now that I read about it I just bought a little. The coin supply is limited - you can see on cryptopia that the sell volume is very low. You can't purchase 1000 coins without pumping up the price. That is the supply is limited.