Couldn't I now do a 60 minutes expose making people believe all sorts of things about you? That you're a closet <whatever people don't like>? Paint you as committing some crime that you had nothing to do with? It doesn't have to be very believable, just believable enough that people will always wonder. Humans are pattern matchers, surely if I give you pieces, you'll fill in the blanks yourself?
I mean you're basically going on the record, with the world all the time.
Yep.
Also: if you don't talk about something that can be veeeery suspicious too.
See recent discussion about forbidden spheres[0].
Full disclosure: I mostly (>90%) trust police where I live. I mostly trust government officials. I still don't want this data in the hands of anyone because 1.) than a year ago everybody knew Turkey was a stable democracy and until the night of the invasion my country were sure Germany wouldn't invade. 2.) everybody get hacked. These databases will be stolen.
People vent, people say things that are poorly thought out in frustration and other circumstances.
In the current climate of vilification, I'm not sure it's a good idea to take the worst that someone may say in a thoughtless moment and use that to label them.
Perhaps we can compare it with crime. Research has shown that crime rates are reduced not when punishment increases, but when the probability of getting caught increases.
This means (translated to our case) that you can scare people all you want with doom-scenarios, but if people perceive the probability of becoming the victim of privacy invasion is low (i.e., they see it as hypothetical), then they don't care about the issue.
In that sense you might be right, in terms of picking a concrete thing that has happened to a person, or someone they know to make this less abstract, this might not be the best approach.
First, the threat imposed by privacy invasion is hypothetical to most people.
And now you're asking them to hypothetically send their pictures to the government?
Come on, if we want to raise awareness, we need better arguments, and especially better formulations to convince people.