But this isn't about case-insensitivity.

There was a C++ developer at job mocking me for using Perl until he realized how much easier data can be parsed with it (and used my Perl code for himself). There are people who despise Lisp just for its parentheses without understanding their purpose which makes Lisp so elegant and powerful. People mock Nim for some things mentioned here without paying attention to the gain of productivity. I am always amazed how banal things can hinder smart people to advance.