How "Catholic" is a Catholic's statement on any particular issue?
I've been noodling a method for evaluating the Catholic-ness of assertions made by Catholics, and I call it The Pope Test:
Take the quote and try to imagine Pope Benedict XVI saying it at the Wednesday General Audience.
If you can't imagine him saying it, it's probably not Catholic. Not necessarily anti-Catholic, mind you--it's either just not consonant with Catholic doctrine or it's not otherwise associated with a feature of the faith.
Feel free to test my hypothesis and discuss.