@JennyFluff The really sad thing is, slop like this actually grew out of an earlier valuable cultural practice: of reimplementing the Insufferable Neighbouring University's ideas on local hardware. There were hundreds of slightly differrent implementations of both Algol and Fortran compilers, for example, but these weren't slop in the same sense — that's just how porting used to be done. Language standardisation was, for a while, seen as an effort to make these slightly different variants to behave similarly enough to offer a degree of source-level portability for application programs.
But the rise of copyrighting software in the eighties converted this valuable cultural practice from porting good ideas into rewriting code for copyright avoidance's sake, and that incentivised bad-and-cheap rewrites. Another example of #CapitalismRuinsEverything .