I've been told by a certain someone that Stack Overflow can provide a good exercise in communication.
I was sceptical about this at first but on the odd occasion I do write a badly formulated question. This leads me to having trouble rewriting it such that it results in a solution and a waste in energy for both the users attempting to give an answer and myself.
Drawing an analogy with real-life, I have encountered this same issue. During an internship I was asked to take lead of a team and encountered criticism from another person after offering suggestions. He said he felt I was looking down at him despite my assurances that this was not the case. I felt really bad about this and it would be a good example where the choice of words was important.
Now, to avoid diverting the question which would be better suited elsewhere, I suggest taking the guidelines on this page as a basis: How to Ask Questions.
What can be added to this page? What recent examples have you encountered that fit the guidelines and to what you see as a good question?
To add to this, do you think over-elaborating a question is an issue? I'm always wary of doing this as I have a good level of English (or so I have been told) but have noticed that my interlocutors lose the train of thought when a clear and concise question could be understood immediately. Or a "pink elephant in the back" effect kicks in when I inadvertently slip in a red herring which becomes the prime focus. Writing a question concisely is not easy task though and I have been told once that I'm not sufficiently concise and focused.
Lastly, can you think of a basic template that could be used for formulating a good question? The composing elements of questions here are the title, tags and content and the objective would be to fill the unknowns with a description of the objective(s) and what attempts were carried out to reach them. Perhaps an equivalent of the Five Ws used in journalism could be used to make sure all aspects have been covered.