Right now multiple choice questions have an 'other' option. When the survey respondent selects this 'other' choice, a text box appears within the question. I really like this feature. I wish it was present on other question types like summation questions, ranking questions, and matrix questions.
Thank you for your message. We appreciate your suggestion regarding the addition of a "feedback question" option, regardless of the question type. We have received your enhancement request and it has been duly noted by our product team.
We always welcome feedback from our community members as it helps us to continually improve our platform. Thank you for taking the time to share your idea with us.