IN PARTICULAR,I DO NOT LIKE A PROGRAMMING LANGUAGE SCREAMING AT ME.(well, the last versions seem calmer)
For some reason, a lot of fortran programmers insist on screaming, even though it’s been optional for 3 decades. I mostly program in python these days...
Backwards compatibility.
I’ve never encountered a compiler that needed ALL CAPS. I guess some people saw old code and just emulated that.
And by last version you mean any Fortran since Fortran 90.
Fortran had nearly everything before nearly all languages.
And I'm sure Fortran was cool back in the day, I'm sure it's due a comeback any day now.
As a matter of fact, in its originally intended domain (i.e. scientific computing), it actually never stopped being a major player.