Many times I am about to write a question and while in the middle of description I think and I should investigate more before asking. So I have to erase everything there and go on to start a new question. It would be helpful to many users if this is included in core as this is good for all questions, answers and comments.
This feature is also provided in many other community software like Discourse, Flarum etc
What do you guys have to say about this?