AnsPress Ranks extension will release before 30th of this month.
Yes its possible. You can create your own wp-cli command to import questions and answers from CSV. Few days ago we imported millions of questions from CSV to AnsPress (I don’t have the code snippet right now, cause it was done by 3rd party).
Yes, will think about it.
You can simply say “No question is selected for this answer”.
We only have AskBug at the moment.
No, I don’t think so. check here: AskBug demo.