A little discouraging that everyone immediately jumped to believing that LinkedIn had been hacked, but I hope that's a greater indictment on the trust in LinkedIn than necessarily this community's ability to remain objective on these kinds of news breaks.
Between meaningless endorsements, constant spam-like "content", aggressively sending invitations without users' permission (nearly hidden opt-in check boxes don't count as permission), and giving recruiters (who pay substantially) immense access to everyone's information... the amount of trust and respect I have for LinkedIn has eroded significantly.