I wouldn't say smooth sailing. After the inital easy access and password cahnge for me, later in the day I could log on and was told there was maintenance. Still, we'll get there in the end.
Interestingly I also took off my CC details, althugh I'm not sure why. They're theoretically as safe there as anywhere. It's not like I've removed them from Amazon or the like. But I guess I'm doing my typical, "wait to see how this thing runs fo rthe first few months to see if Sony have made any mistakes." May see about getting a PSN card code instead. Better value anyhow.
Yah, it's sort of a raw human instinct -- like touching a hot or cold surface and withdrawing from it quickly.
I have my CC stored in multiple, less secure sites. I work in IT security and know many of the issues with trying to secure anything. Nevertheless, I immediately changed my password to a machine generated one, and removed my CC. Strange beings we are... as illogical as we are.
The real victims of CC fraud are the banks, and then the consumers with the higher rates and fees we may pay as a result of the banks passing the cost down to us.