Imagine a website where people can post questions, and receive just answers (no chit-chat). Anybody could ask a question, anybody could answer. Some questions would be fanciful, others relevant to current affairs, imaginary, or even scientific. Anything you can imagine could be asked. There would be little to no moderation.
Imagine the website then being used to "harvest" the answers by anyone who had access to the information published - and the people who participated with the best answers. Targeted individuals would then be privately contacted, or watched as the need may be, or even 'cultivated' into specific directions. Some could even be recruited to implement even better or related ideas.
Targeting inquisitive and bright minds would be tempting to corporations and businesses alike who learned of this website, perhaps government and technology industries or finance, or biology and science. Volunteering 'expertise' could even be perceived as dangerous for some, or as an opportunity by others.
So the question is, would this website be benign and beneficial or would it be something else?