Although I think this article is informative about pointing out the crypto connection (there sure are many well known haskell devs related to crypto, to Cardano

Although I think this article is informative about pointing out the crypto connection (there sure are many well known haskell devs related to crypto, to Cardano specifically), but I think it's way too negative. There are scams in cryptocurrencies, sure, but do some of them have real value? I think they do. But perhaps somebody knows the answer to these questions instead: - is Cardano itself a scam? (= are the people related immoral?) - are there more cryptocurrencies developed in haskell and are these scams? Other than that, I don't really see the influence on the ecosystem - what are some concrete examples here?