usecase for insertquestions() and extractanswers()

to me, the real world use cases are pretty limited for these functions. 
The result of "Insertquestion" is a Text Array. So nothing else than a plain {"a","b","c"}.

extractanswers() is just useful if you have a text or array of text which have question and answer in the same string value.
"What is your name? Ben!"  is just one string value.
->so this is very unlikly to happen.

Reasons are mainly best practices: usually you define the question and the user will answer and you store just the answer in a specific variable/field

or

you are saving question and answer as own string values because they are inserted in two different textfields/paragraphfields.
{"What is your name?", "Ben!" }