Simply put, I counted 6 people reporting this here (I am one). My attempt to estimate how many people read this: X HN daily actives, each looks at Y threads a day (random out of 30 they see), one in Z posts to the thread.

Quick check with Alexa gave me something on the order of 2 million for X, that seems really high to me, let's say X=100k (even this seems very generous). Y and Z are pretty tricky, using a gut guess of Y = 5 and Z = 10:

6 * Z / ((Y * X) / 30 ) = (6 * Z * 30) / (X * Y) = 6 * 10 * 30 / (100000 * 5) = 0.0036 = 0.36%

0.36% of the HN audience. Very back-of-the-envelope.

Assuming you're at work, and you spend 30 minutes of a day where you could be caught on camera, and assuming Google streetview vehicle passes through your road once every year, what is the probability of you getting caught on camera? Also we should take in to factor you don't and streetview vehicle work only from 9-5.