Advice to programmers! And writers too!!!!!!!
I saw a program save a file and then show this dialog: That exclamation mark told me a whole history. It told me that the programmer had had a hard time getting the file saving function to work. In alpha and beta releases the program had crashed at various points during the process. The programmer had not slept wondering what was wrong. And he wanted recognition for his work. So when he finally got it to work, he was surprised, hence the exclamation mark. And you, the user, should be grateful that the program has done what it has been designed to do. The correct functioning of the program is so rare that it is worthy of an exclamation mark. Neither Word not AutoCAD tell you that the file has been saved (for example). These programs do what you ask obediently, and silently. It is not a surprise that they work properly. If you ever use a program which puts exclamation marks in its messages, do backups of your data often. And ...