AI is not a buzzword, try beating Go without machine learning. Just ignore the whole enterprise speak, and you'll see a lot of really cool things which are possible almost only by means of neural nets.
How's that not crypto? Such a network needs to be run and achieve consensus, right? How's that work without the crypto part? It seems like what you're describing is Ethereum.
Neural nets is a useful term that refers to a class of algorithms, though. "AI" doesn't appear to have any use beyond marketing to people who don't know what they want.