Are you kidding? We can say that ethereum has weak sides or that he has problems with scalability but it's definitely isn't a ponzi scheme. Because if it is, then the whole market is ponzi scheme. Think outside of the box. Ethereum is one of the best things that happened in crypto.
Well, I also don't believe this. very much news about things like this, even bitcoin also do not get away from news that want to drop like this. well, I know so many people want to drop ethereum, because most likely the altcoin price will also follow. but I do not believe it without strong evidence.