Out of sheer curiosity:
Are there any statistics on how many users click the "I hate hats" button during Winter Bash?
This year there were a total of 215,960 users who participated in hats. There were also 4,687 users who officially opted out of hats by clicking the 'I Hate Hats' option. Overall, it is a tiny percent of users who hate hats enough to opt-out of them...only about 2%.