<blockquote>
Math.StackExchange isn't just a place to ask and answer questions. It's also a place to read questions and answers, which is a great way to see what people with different experiences than yours actually think about the topics of your questions. So when you ask for the help of those who may know more than you, please also extend a hand to those who may know less than you by explaining why you are asking the question and the ways in which you understand (or the ways in which you don't understand) the question. You'll get more votes, generate more interest, and are more likely to get your question answered thoughfully. Explaining the motivation for a question may also help you gain a fresh outlook on the topic you're asking about. This site is very effective at developing your ability to communicate mathematics.
</blockquote>

Shamefully <strike>taken</strike> adapted from the <a href="http://mathoverflow.net/howtoask#motivation">MO FAQ</a>.