Suppose I delete an answer or a question I have posted, it is still visible for users with high reputation to see that.

I guess deleting an answer would mean I realise that the content is wrong or not sufficient.

It is little embarrassing to know that my stupid answer/question is still visible to so many users.

What is the point of this facility to high reputation users?

Is it a good idea to make it visible just for me and no one else?