- Short (Small) - Minimize bandwidth for your example, do not bore the audience.
- Self Contained - Ensure everything is included, ready to go.
- Correct - Copy, paste, (compile,) see is the aim.
- Clean - proper formatting or at least something that has some scope to be formatted
- Example - Displays the problem you are trying to solve.
There are many questions which are posted with such terrible formatting that it would take ages to make them good enough for SO standards. We already have flags for moderator attention for such questions.
Should this guideline also be included in Stack Exchange sites?