He meant to point out that you lack good sense, despite your
strenuous protestations.
The paparazzi go after celebrities and famous people, not ordinary
folks on the bus. The private investigator tries to capture his
target in a compromising act (and preferably with his face shown
clearly too), not sitting in a bus with his back facing the lens.
Stalkers don't post their pictures online for everyone to see their
target commuting.
I think you get the idea.
We are uncertain which idea the irrelevant "evidence" reinforces,
except that people who check out the link realise you have no case
at all, since the US law and Sg law are incomparable.
Taking pictures in public is not a crime, at least not in
Singapore. Many pictures taken in public unwittingly capture the
images of others, as the numerous photographs in newspapers and
magazines will show.