> I dislike slacktivism like this. I feel that it's damaging because it wastes attention and effort that could be put to good use.
I don't think it's a waste of attention. This is also something you should share after you've done -- the hope is to raise awareness. In addition, they want to put faces to the constituents who are against privacy violations. Ethos is a valid appeal.
"Slacktivism" is a word that devalues small contributions on the part of constituents who might otherwise do nothing to express their voice. Behind every group of "slacktivists" is a passionate group whose goal is to make unheard voices apparent. To decry "slacktivisism" is to decry the work of those people, to say it doesn't matter when in reality it has a measurable effect. E.g online activism against SOPA/PIPA, Aaron's Law, these are outgrowths.
> become an informed and educated voter who actually votes... Encourage others to do the same. It's literally the only thing that will fix these problems.
The people running these campaigns are doing exactly that, encouraging people to vote if they can. Barring that, signing petitions is the next best thing. Anecdotally I've become better informed because of projects like these, and in doing so become a better voter.