Arthur Hayes, a Bitcoin (CRYPTO: BTC) supporter and co-founder of the crypto exchange BitMex, on Wednesday questioned the actual utility and success of decentralized applications (dApps) within the Cardano (CRYPTO: ADA) ecosystem. What Happened: To the Cardano supporters, Hayes said, “For all you ADA believers, what dAPP on this list originally launched on Cardano, or has a Cardano offering that is heavily used? From my very limited knowledge, looks like none of them do. That’s why ADA is dog sh*t.” He also tagged Charles Hoskinson, one of the founding figures behind Cardano, asking him to pro…