In regards to this comment:

Should Ethereum be regulated to stop the proliferation of these kind of scams?

Any kind of crypto that offers profits is subject to unannounced regulation by most governments. Meaning, just because it's decentralized does not mean that the intentions of the user can't be regulated by using something.

In simple terms, if you think that by using any crypto you will never be accountable for regulation, you are just closing your eyes. Especially to everything that promises profits.