Most of the scams that occur do exist in erc20 due to the easy token creation process. In my opinion, ethereum alliance must be able to prevent this fraud by asking the developer team to provide a guarantee or deposit when they want to sell tokens or at least ask for identity documents so that when fraud occurs can be quickly known.
That would have been much better. But the freedom that everyone enjoys within the crypto world is almost absolute that everybody, even a dope addict and a 7-year old kid, is being given the full liberty to create whatever project they wish to, mint coins with supplies and value they alone determine, and offer in the ICO market which is also as open and free.