I remember Tom Woods interviewing someone about this a long time ago. He was talking about the immense predictive power of the data we leave online, including the signals we're sending by abstaining from certain practices.

As someone who works with data professionally, I'm skeptical of the accuracy he claimed, but the point is absolutely correct. Everything we do or don't do sends signals that are being compiled and analyzed (even if no one is actually looking at the analyses).

I think making your signals noisy is underrated, as is being very idiosyncratic.