Considering that's now a crime in many countries, I'd say you're asking for trouble in even talking about it. When it comes to UCE, the best way to prevent it is by filtration. If the messages aren't read, the incentive for sending them is reduced.
. These are constructive solutions to the problem, quite the opposite of what you're suggesting.
Passive resistance is a lot better than waging a war that is likely to have a lot of so-called collateral damage.