What the reasons for/against returning 0 from main in ISO C++?

Question

I know that the C++ standard says that return 0 is inserted at the end of main() if no return statement is given; however, I often see recently-wri

Answer 1

Just because your code complies with the standard, who says your code is going to be run through a compliant compiler? Believe it or not, people do use compilers besides just recent versions of GCC and Visual C++.

And of course there's the explicit intent thing that everyone else has mentioned.