When you make a general purpose tool, sometimes people use it for harmful things, but the overall effect of telephones is clearly positive. On the other hand,

When you make a general purpose tool, sometimes people use it for harmful things, but the overall effect of telephones is clearly positive. On the other hand, when you make a decentralized encrypted tool in a space where other options already exist that handle the most common non-criminal use cases your balance of how much you are facilitating harmful vs beneficial use is pretty different. This doesn't mean that you should never create secure distributed tools, but it does mean that the trade-offs around them look pretty different from something like traditional phones.