And this is the sentence that should be always added if you answer a newcomers question related to using c_strings.
No I disagree. In case of the String-class you would have to add the warning
If you use the Strings in this way (precise description when this can happen ) you are in danger that more and more RAM will be occupied until your program crashes.
by the way: I haven't seen a precise description of how to use the String-class which avoids occupying more and more RAM.