How does the comment system and comments work?
I already encountered this situation quite often at stackoverflow.com.
Someone posts a question, but the question left some important aspects open!
With the current technical implementation at stackoverflow.com you can only create an answer, and start your clarification Q&A thread inside there. But structurally seen, this IS NOT A REAL answer, but rather some further callbacks and answers, before the REAL answer!
Structurally, it would be very good if one could create a comment to the original question, within which one clarifies the meaning of the question, and then give a REAL answer into the answer section!