Case 1. January 24th, 2007:
Fyodor woke up to learn that GoDaddy suspended his highly-popular domain, seclists.org, without warning because of content posted in one of the mailing lists that his site archives (more).
Case 2. January 19th, 2007:
Website designer "X" received a telephone call from Gandi informing them that the site of one of their clients was hacked and being used as part of a phishing scheme; this call was followed by an e-mail telling them where the file was so they could delete it, which they did within the hour.