++ for a proposal that might accomplish its goal.

Ok how about this: There are two forms for posting. The current one (with all that formatting stuff) will be the "advanced" and "reply" forms.

Anonymous and freshly registered users get a special form for posting new questions. This form does not take formating, but has multiple text fields, labeled "your question", "code", "input data" and "expected output". While none of these except "your question" and the title are required fields (can be left blank), they probably would suggest to most users what we actually need. Then, at submitting, PM would automatically put the fields in their correct formatting.

More experienced users, from Level (?) onward can change their settings to use the "advanced free formatting form" or something which allows all freedoms as it is now.

Of course, editing already posted questions would still use the free format textfield, too. Just the initial form for posting a new question would be the new "smarter" form.