After enjoying this question and the responses it prompted, I thought, "It'd be great to have more questions about interpreting the Shabbat songs. I bet people think of them all the time when singing and then forget about them."
What if we featured a weekly topic challenge - a call for questions on a particular topic?
Here's a draft of how it might work. Once a week (probably on Wednesday or Thursday night), an organizer would do the following:
Post a meta question asking for proposed topics for the following week's challenge.
Choose a topic from the proposals submitted for this week, taking community voting into account (perhaps strictly).
Post a meta question including a brief recap of the now-ending challenge and a call for questions relating to this week's challenge.
Put up a system message (24- or 48-hour, depending on how long it is until Shabbat) linking to both meta questions.
Community members have the topic in mind over Shabbat and hopefully post questions on that topic over the next few days. They add links to their questions to a community-wikified answer to the challenge post or perhaps in individual answers.
What do you think? Should we try this? Any other ideas about how it ought to run?