18 December 2012
In the period between May and November 2012, the ICO received 550 reports via its cookie reporting tool. Most of the concerns were raised by individuals who were unhappy with the implied consent mechanisms authorised by the ICO or who felt that they had not been given enough information about how to decline cookies or manage them later. Others raised concerns about the new rules themselves and the effect on the usability of websites.
Appendices to the report can be found here. They include a list of the organisations to which letters were sent, as well as examples of the letters sent.