It depends on how your system is organised. Where I am from voting no means that nothing will be changed and legislation will be frozen. In this way you are not forcing your will on others, you are just being an obstacle in the system of the state. In my opinion this is better than not voting at all. If a pure no-party would obtain 50% that would mean the system is officially unable to act. If 50% dont vote they can still pass laws but they can no longer claim to speak for the people. In the end I guess as you point out it doesn't matter as much, living free in private and ignoring the state may be the better solution.
by blockchain I just mean that we have to trust the representatives to really vote no always. So they could lock some bitcoin into a smart contract that they will never get back should they vote yes. There still is trust required though.