I tried to improve a question in StackOverflow which has a tag tutorials. At the time of saving, I got the error as given below.
Oops! Your edit couldn't be submitted because: sorry, the 'tutorials' tag is not allowed.
What should I do? Should I do remove the tag and save it? If the tag is not allowed, StackOverflow can remove the tag from all question, why didn't they do it? If it is not possible, they can automatically remove the tag at the time of editing so that we can avoid removing the tag manually.