I'm a participant in Yahoo Answer's Religion and Spirituality section. It's already known for being a battleground between atheists and theists, you can find some videos in youtube by typing:
yahoo R&S
Occasionally there will be a question that starts with "Spiritually speaking,…" and then ends with a ridiculously irrelevant question, like this one, that was actually asked:
Spiritually speaking, what's a good porno I can watch before I go to bed?
There are tons of these, they mock the seriousness of the people who participate in R&S. You can find a ton of them by googling yahoo R&S or religion and spirituality.
I'm guessing this started from questions that started with "spiritually speaking" that were somewhat related to spirituality, but as of lately they've become excuses to catch the attention of the R&S people, and they know that that is the most popular section of Yahoo Answers.