Those that implemented the unused variable feature are completely unaware that there are two modalities of programming: exploring a problem space, and building a solid product.
When you're exploring, you don't want your compiler to stop you in your tracks to warn you about pedantic nonsense. It's not a syntax error that prevents your compiler from understanding, it's just arbitrary restriction that the compiler decides to pester your about, a sort of a robotic grammar nazi.
Computers are obtuse, the worst thing they can do is ignore your perfectly parseable and valid instructions for arbitrary reasons. Machine, if you know I'm not using a variable, kindly let me know and carry on doing your job.
When you're exploring, you don't want your compiler to stop you in your tracks to warn you about pedantic nonsense. It's not a syntax error that prevents your compiler from understanding, it's just arbitrary restriction that the compiler decides to pester your about, a sort of a robotic grammar nazi.
Computers are obtuse, the worst thing they can do is ignore your perfectly parseable and valid instructions for arbitrary reasons. Machine, if you know I'm not using a variable, kindly let me know and carry on doing your job.