Stan's brother (Larry Lieber) didn't create the Hulk, otherwise I'm not sure why you are using Stan's birthname?
I always think of him as Lieber. As a Jew, I think it's significant and fascinating that most of the creators of superheroes at a certain time were Jews. There was an interesting but ultimately unsuccessful exhibit at the Skirball in LA on this theme last year, but it ultimately didn't have much of a thesis or theme.
I also like to think we're long past the point where Jews have to hide our ethnicity or religion.
That said, it was just a slip. Not trying to push an agenda.