Every tools that was invented or will be invent in the future will be used wrongly,the point people are not getting is every successful invention can be used to do bad things,stop saying cryptocurrency scam is increasing and leaving banks hacks & scams out of it,cell phones & smartphones was build for humans to make communication easier for us but still scammers are using the tech to do terrible things like terrorist attacks,online romance scams etc,my point is no matter how good an invention is bad people will use it for their own benefits.
You are very right about the fact that some people always like to twist the purpose of a thing for their own selfish interest. That's why people keep shouting that there is scam here and there. But that cannot by any means stop the great and impressive accomplishments made in cryptocurrency and even in the block chain. Since we are are that some people can hack or start scam project, any suspicious activity of such should be made known to cryptonaires so people can thread cautiously with that project. And in all, cryptocurrency cannot be stopped or hindered, regardless of how much people try to crush it with all manner of malicious behaviours