You linked to a 2013 comp.lang.fortran post by Terence, who wrote that few post-F77 features were needed, such as
(E.g. 'IMPLICIT NONE', the ability to perform bit-wise logic, and the
IF..THEN..ELSE. ENDIF paragraph in particular).And very important, the
ability to use unformatted streams of data ('BINARY' or 'TRANSPARENT'
attributes)
In 2013 there were many Fortran 95 compilers (I don’t remember the state of F2003 compliance at that time.) available, including the free g95 and gfortran, yet Terence recommended avoiding most F95 features. That is needlessly conservative IMO, but waiting for at least 2 compilers to implement a feature before you use it in production is reasonable, especially if the feature’s benefit is marginal.