Comment I'm no longer a member (Score 2) 92
After they spammed my gmail address book with invites. The request page to do this, looks just like the log in page, so thinking that they need your password to log in you end up spamming mailing lists and people you haven't talked to in years.
I'm not the only one, http://community.linkedin.com/questions/19949/why-did-you-send-invitation-emails-to-my-entire-gm.html#comment-31842