Actually, I think Rob Pike in a talk said something along the lines of "they are writing code as opposed to programming", implying that "coding" is sort of "mindless programming". The output of "coding" is code, the output of programming is a program, which may or may not be code, though usually is.

Edit: Upon some googling, this comes from the book "The Practice of Programming" by Kernighan/Pike.

Because it sounds cooler. It has a connotation with code as writing something cryptic. Programmer is so eighties.

Everyone is an "engineer" these days. It doesn't matter what your title is, as long as you get things done.

Don't forget "dev". Everyone is a "dev" now.