Dating service OkCupid has cheerfully admitted to manipulating what it shows users, a month after Facebook faced a storm of protest when it revealed that it had conducted psychological experiments.
OkCupid doesn't really know what it's doing. Neither does any other website. It's not like people have been building these things for very long, or you can go look up a blueprint or something. Most ideas are bad. Even good ideas could be better.
"When a friend posted a photograph of charity worker Lindsey Stone on Facebook, she never dreamed she would lose her job and her reputation. Two years on, could she get her life back?"