It depends on the question, but usually questions about song lyrics are about interpretation, so there isn't a correct answer, and the answers aren't related to English, but to the psychology of the lyricist.
@Skooba There are a few low bars any question has to get over, and sometimes lyrics questions don't make it. Is there an actual problem to be solved? Is it actually answerable, or just a matter of opinion? And will the solution help future visitors?
@MetaEd Well, I am still relatively new to the SE network as a whole, but I hear that Jeff Atwood was hard on SFF because "It did not solve real problems". But it doesn't really matter because it still fits the SE Q&A model, and there are certainly "experts" there.
@Skooba We get our share of questions that don't solve real problems. Is the paragraph I read on this web page grammatically correct, that sort of thing.