Good heavens, the comments on that article make me want to vomit:

"Thanks to people with your mindset our streets and borders are not as safe as they should be."

This option is made freely available to passengers, but by choosing it you're signaling that you hate your country and public safety? It's no wonder people are scared to push back on invasive and discriminatory practices.

I found the signs to be hard to find and poorly placed.

But since I knew about it before traveling, I just said no photo please and it was pretty frictionless.

The people behind me did not even realize you could say no, and no one really wants to be late for their flight.

Make the sign bigger. Its not a good test in my view.

The signage is not clear and also, you're directly faced in an environment that's not friendly so yeah, it will fail.

The TSA already knows what your face looks like, though.