1) Vitalik and many others in the Ethereum space are known scammers. Vitalik is not an idiot thus he should have known better than pitch something as ridiculous as quantum mining to potential investors. This is a snake oil salesman pitching technical nonsense to the credulous.
http://www.newsbtc.com/2016/08/17/gregory-maxwell-vitalik-buterin-ran-quantum-computer-scam/
https://archive.fo/VZbPs
https://www.youtube.com/watch?v=DkUpZkeqhF4
2) ETH is an illegal security according to the Howey test with a premine of 72 million eths. They purposely misled investors by suggesting merely 12 million gifted premine ignoring the 60 million they sold. Misleading total supply graphs in their prospectus.
3) Vitalik and many other have been falsely representing Ethereum and misleading others over and over again. example - pitching turing completeness as the valuable aspect of ETh , now pivoting away from that and saying it was never about turing completeness but "rich statefulness"
4) Ethereum is a pointless project that will lead to no efficiency because there is no censorship risk in code execution. If a project has no hope of ever creating an efficiency(like bitcoin has found with regulatory arbitrage) than every company and project will ultimately fail in its ecosystem. Are you trying to suggest that someday in the future there will be censorship risk in code execution? If not than what purpose does Ethereum solve if it comes with a horrible tradeoff of an extremely large attack surface and huge scaling problems?
5) Advertising immutability and unstoppable contracts that were than immediately reversed with multiple hard forks.
6) For goodness sake the inflation distribution rate or final algo is not even defined and people are investing in this. This is insane and basically amounts to faith in vitalik and his team, while at the same time newbs are misled into believing eth is decentralized.
https://www.youtube.com/watch?v=wUUVlatCvp0
https://www.youtube.com/watch?v=mCiHTJRbIf4
https://www.youtube.com/watch?v=BgFXqVpGDNg
https://medium.com/startup-grind/i-was-wrong-about-ethereum-804c9a906d36
https://www.reddit.com/r/ethereumfraud/
Additionally, there are plenty of ICO's who have locked up Ethereum's and need to constantly sell them for fiat to pay for their burn rate going into next year which places a constant negative pressure on ETH price
This is what I think of Ethereum's 2.0 plans - https://www.youtube.com/watch?v=16T5CUNGX2Q&t=6h37m20s
So many famous and respectful companies are partners of ethereum and do you still consider it scam? Ethereum is like a protocol, the platform where anybody can do whatever he wants. I don't think it's smart thing to guilt ethereum for everything that is based on its platform. Don't you think so?