Which occasions? If this were a rationality kata I would immediately ask, "What trigger condition does the person need to recognize that chains into using this technique?"

We will have to make the web better, then.

Who cares about "sometimes" when making a decision? What counts is the expectation, what happens on average.

Yes, sometimes investing all your savings in a single high-risk stock picked at random while drunk works better than listening to various experts, researching the relevant literature and diversifying your investments. That doesn't mean it's a good idea.

Sometimes, you can spend an expensive five hours hunting on the web for data that a research librarian could retrieve from a reference book in minutes.

This quote seems to be losing its relevance, since even when I was a college senior you could get help from research librarians via web chat.