Nouriel Roubini said that the decline of Ethereum was triggered by a few active decentralization applications (DApps)
and the result is 80% ETH drop and fall, DApps is crypto kitties, scammy, ponzi pyramid, and casino games. so the cryptocurrency has lost its value.
Those might affect the value of ETH due to its scalability and prone to negativities fud. Once ETH were established again like ETH 2.0 that Vitalak might considered. This will revived the value of ETH and potential investors will flock on it.