A valid contract requires a meeting of minds such that inserting something designed to trick the other party inside a contract is pretty much always invalid. I

A valid contract requires a meeting of minds such that inserting something designed to trick the other party inside a contract is pretty much always invalid. If you sign a contract to abide by a smart contract that was designed in bad faith or misrepresented I fail to see how that's any different. Even valid contracts are bound by the law. E.G. you can't sell yourself into slavery. Similarly, a smart contract can be a tool to execute the terms of a legal contract, but if it behaves in a way that would be illegal under a traditional contract I doubt any court in the US or Europe is going to recognize that as legal. I admit enforcement is another issue entirely though.