> And it's not like everybody has the same definition of "simple and obvious".
That is a very good point. I had an interesting discussion with a Perl programmer once regarding the use of Perl's default variable $_ - to him, code that relied heavily on it was straightforward and readable. But to a newcomer, it can be very tricky to figure out what is going on. And even to an experienced Perl programmer, it can increase the mental overhead of parsing code significantly if s/he is not used to it.
>And it's not like everybody has the same definition of "simple and obvious".
No, but it's like we can expect of people to more or less agree on a definition of "simple and obvious" or else be outliers.
You still need to be C++ fluent enough to be able to read other people's code. And it's not like everybody has the same definition of "simple and obvious".