Just because GoDaddy is what most people use doesn't mean it's what most people should use. On top of all the SOPA nonsense, GoDaddy has remarkably sexist and degrading ads. I'd encourage you to set the default registrar to be a different registrar by default - maybe Namecheap?
There's a huge drop off in affiliate revenue from GoDaddy to the next most popular registrar. Making Namecheap default would inconvenience most the users and cause a substantial drop in my revenue.
I appreciate where you're coming from, but I'm not sure the pros of switching outweigh the cons.
I don't mean to sound divisive but certainly on this forum GoDaddy is considered harmful to users due to it's willingness to shut down domains without due process. While it's unfortunate that other registrars cannot match the referral fees, it would be considered welcome to issue a warning that GoDaddy has a bad track record when it comes to supporting domain holder's rights.
You can change it by clicking 'change your preferred registrar' link below the red button on the confirmation dialog.