Tools are not inherently morally neutral, and I wish that people would stop repeating this lie. Slot machines are expressly designed to feed on a person's gamb

Tools are not inherently morally neutral, and I wish that people would stop repeating this lie. Slot machines are expressly designed to feed on a person's gambling addiction and to take their money. Dirty bombs are designed to murder thousands or millions of innocent civilians. The Nazi gas chambers were designed to slaughter millions of innocent civilians. Using a programming language benefits that programming language. This is pretty transparently obvious - a larger community means more skilled professionals, more support on stack overflow, more funding for development, and more open-source contributions. If you strongly believe that the crypto-currency people are doing evil, it makes sense not to aid them. Whether "using Haskell" is worth worrying about is something for individuals to decide on their own. But it's absurd to say that there is no ethical dilemma in incentivizing the development of a tool that is used for evil.