Most movements involve everybody banding together. Which is fine, I guess. It's where you, the individual, absorb into the amorphous whole—the movement's dogma, policies, initiatives—and ride along to wherever "The Blob" of your particular cause schleps next.
Peace Plan A offers the diametric opposite. It's completely self-contained. Your SELF. Instead of getting tangled in the tendrils of Blob Mentality, you simply sign a pledge that you, yourself, will refrain from being an a-hole for the rest of your life. No meetings to sit through, or protests to attend or secret handshake to learn ... just your freshly-pledged self interacting with the outside world while practicing a-hole-free behavior. It's no more complicated than that.
But it is more revolutionary. Because you aren't the only self signing Peace Plan A. Once we reach a sizable population of signatories, it'll be a much more pleasant, a-holeless planet for everybody.