Firstly, my sincere congratulations on a fine site and fantastic resources. I visit here a few times a year but this would be my first reply.

“Luck of the Irish” or “Irish Luck”, when used in the personal sense, is actually BAD luck or could be used in a derogatory statement. (…almost comparable to “dumb luck”)

There’s a John Lennon song that includes the lyrics.. “Don’t wish for the luck of the Irish, You’ll wish you was English instead.” (sic) (ref: http://www.youtube.com/watch?v=MNwqV_HpMSE )

It’s not one of my favorite songs but I do love Lennon.

Have a happy 2012

Kindest regards,
Vincent