We don't have to keep current cryptocurrencies around just because there was a CS breakthrough in its first implementation. Should keep all of these shitcoins

We don't have to keep current cryptocurrencies around just because there was a CS breakthrough in its first implementation. Should keep all of these shitcoins and ICO scams around because 1/100 might be legit while 99/100 of them do real damage to investors? Or do you want to keep them around because a CS breakthrough being implemented takes precedence over enforcing financial fraud?