The plan of the first, NOVA, whose intention was to scam others of their hard earned money, was foiled early enough, because it was using a fake.
ETCV on the other hand was not quickly detected, but its team was anonymous, which i feel is enough to suspect them of scam.
Right now, its telegram account has changed when i checked.
It's website is suspended and so on.
They are now asking people to buy their coin, which does not exist.
Therefore, the only genuine hardfork, is the constantinople.