First of all, there will be a lot of single issue politics, connected to lifestyle/hobby groups like hunting, bird watching or music downloading. A million signatures to abolish copyrights will be no match for them. There will be also a lot of emotionally loaded political questions. Banning nukes, GMO agriculture products or bailing out Assange? I bet that you can collect a million signatures for such issues in Europe almost overnight. Or collecting signatures for big business 10 euros each? Even signing up, too.