I see "build order" questions frequently, particuarly for starcraft 2. While often the answers are good, these questions can easily be answered by a simple google search. Liquipedia has a far more comprehensive answer on build orders than anyone can post, and comes up first in search results. Why is it acceptable to ask and answer these general reference questions that are not permissible on other SE sites?
The Internet is a chaotic place: you can find information about almost anything if you search hard enough or synthesize data from disparate sources.
Stack Exchange, on the other hand, is intended to be a structured repository of useful information that fits the Q&A format: if there's a chance for us to provide a better answer than the rest of the Internet, even if it's been covered to death elsewhere, we're going to do it, because it makes the Internet fundamentally better.
But we're not trying to be GameFAQs or Wikia: we specialize in specific questions. While yes, you could read a whole strategy guide to find out the answer to a specific problem, we work under the premise that if one person has a specific problem that requires the synthesis of a specific, tailored answer, other people are probably asking the same thing and would benefit from seeing the tailored answer instead of getting linked to a whole guide that covers everything.
So asking questions that are so-called "general reference" is fine here, and it's fine on all but two sites on the network (English.SE and SciFi.SE). In fact, after the field trials on English.SE and SciFi.SE, the plan to roll out the "general reference" close reason to the rest of the network was scrapped due to its potential for abuse.
To that end, I highly encourage you—and anyone else who thinks closing things as general reference is a good idea—to listen to at least minutes 14:00–20:00 of Stack Exchange Podcast #20, where Joel Spolsky and Jeff Atwood (founders of Stack Exchange) discuss its benefits and drawbacks.
Now, of course, there are questions that seem like general reference, but are bad for other reasons and should be closed:
Questions that would require a whole book to answer: close as not a real question.
Example: "Can you walk me through all the levels of Super Mario World?"
Questions that don't define a problem or correctness criteria: close as not constructive.
Example: "What's the most fun StarCraft II faction?"
Questions that are easily answered by a general reference, but define a problem in such a contrived or specific way that prima facie invalidates any obvious answer and would be useful to pretty much only the asker: close as too localized.
Example: "Diablo III says it's PC/Mac only. How can I get Diablo III to run on my TI-83 calculator?"