One nice feature would be hide the source code automatically when the question is too big, and click on something to be able to visualize the question.

In [this question](http://stackoverflow.com/q/18239861/413494) people are asking with a lot of data, so the question is currently huge and hard to have an overview. This feature would allow people to see the question from a high-level point-of-view, and see the code if they feel they have the need.