If you want to discourage people from using C, like it sounds like you do, there's ways to do so without being a finger-wagging nag. For example, you could writ

If you want to discourage people from using C, like it sounds like you do, there's ways to do so without being a finger-wagging nag. For example, you could write a follow up article that demonstrates security vulnerabilities of the simple shell in the linked article, and build an analogue in Rust and show how it addresses them. That's probably more persuasive than writing a drive-by post shitting on a cool project that someone spent time and effort putting together.