Another post over on the Distil Blog, check it out:

It’s worth noting however that the same techniques this UCLA PhD student employed to scrape OkCupid are also used everyday for more nefarious purposes. Content scraping is big business – attackers do everything from stealing and republishing original content, performing competitive pricing analysis, and more. It can have a material impact on a business bottom line.

How a Math Genius Hacked OKCupid; And How Distil Would Have Stopped Him