This SOPA support was the straw that broke the camel's back.
Call this anecdotal if you will, but GoDaddy always occupied that "necessary evil" for domain registration in my brain. If others on HN are at all like me, they probably have > 75% of their registered domains sitting and doing nothing. GoDaddy's tasteless ads, horrible UX, shutdowns of domains due to "good faith" complaints...this was just the final incentive to call it quits. Predictably irrational, absolutely - guilty as charged.