There's no very good reason that you accuse ethereum a big scam you just wasting your time on it get hold some of it
The truth is that some people have their reservations on a coin and they end up pouring out their hatred and acting all emotional about it. ETH is a good project, it may have some flaws but that does not mean it is a scam coin. This is one coin that has given birth to a lot of ICOs and for someone to relate it to a scam coin, then such a person is really wasting his time like you said.
Ehm...you guys do realise, that like 70% of Altcoins are based on ethereum? It's not going anywhere.
That is one thing that would always keep Ethereum afloat. OP may not have that clue but it is best he really understands that now. No one knows what will happen in the future, but Ethereum being referred to as a scam is just one thing that does not even sound reasonable at all. It is going to keep doing well, it may have some competitions in the long run, possibly get pushed down, but it will keep staying relevant.