What is brain-picking? Mirriam-Webster defines the word as an act of gathering information from another’s mind. Answers.com defines it as an act of exploring another’s ideas through questioning. Based on Random House Unabridged Dictionary, it is the act of obtaining information or ideas by questioning another person. A brainpicker is the person who brain-picks.
In industries, brain picking attempts to elicit “information, advice and guidance from the consultant for free” - without consultation fee. Is it illegal? Of course not, it is the best way of getting information, even private information. To brain pick is not easy but challenging. The art of creating questions, particularly “leading questions”, can facilitate getting a more accurate answer.