[kinjba11]

I disagree. Language does matter for long term maintenance. For instance with a tax rebate.

Static typing - a fancy language feature - can immediately tell you the function deals with money. +1 for maintenance. Static typing with a solid IDE will immediately reveal everywhere the function is used. +1.

Languages shepherd you into certain designs or mistakes by making some things easier than others, such as when class inheritance can be easily abused in OO languages, cryptic one liners are easy in Perl, point-free cleverness in Haskell, monkey patching in dynamic languages, etc. +/-1 depending.

Per documentation, languages come with tools and best practices: Javadoc, Godoc, Rustdoc; C# even has a dedicated comment syntax for documentation - a fancy language feature. +1. No one does documentation, until the language tooling forces them to.

That said, BG (Before Git) and widespread use of source control, as in '96 to '02, was a dark age. We know more now.