GoDaddy's official Twitter account is currently robo-replying with "We encourage you to visit our blog to view the details of our position on SOPA: http://x.co/c0q4, so I doubt they were "tricked".

Of course not. I know enough of their business practice to know they were willing participants, but one has to wonder what they thought they would gain by enlisting. It looks kinda naive to me.

GoDaddy seems to be the official registrar of domain name seizure http://www.techspot.com/news/46481-judge-oks-private-domain-... :

ordering the registry to transfer domain names to GoDaddy and ordering GoDaddy to update the DNS records

The ability of easily kill websites would seem to benefit domain registrars in a fairly straightforward way.

They're not a regular technology company. They're owned by KKR.

Can you explain why this is significant to people not familiar with KKR? Their Wikipedia page isn't telling me much.

KKR is basically a decentralized conglomerate. While GoDaddy is (sort of) a technology company, KKR is closer in spirit to the sort of companies that support SOPA. Which is why we're seeing the apparently anomalous sight of an Internet company that supports SOPA. It's not GoDaddy talking; it's KKR talking through GoDaddy.

SOPA is also against counterfeit products and drugs. But if they really care about that, they should separate it from copyright infringement.

They probably lumped them together just so they can show off with a long list of companies supporting it from different markets.