I'm more fed up with smug rustaceans acting like everything Rust does is somehow novel. Just because *you're* not aware that a language feature already existed earlier doesn't mean Rust invented it.
That's my point in a nutshell. It's a cool language. But there's a growing number of converts for whom this is their first introduction to these concepts, and they don't seem to have the intellectual curiosity to dive deeper.
I also see this behavior with Typescript and "powerful type systems"
Edit: Maybe these types of low quality comments exist on social networks, but... Isn't that just the norm for social networks? You can say the same about cooking advice on social media, or "life hacks" content, etc
Rustaceans would do well to read something like Raphael Finkel's book Advanced Programming Language Design where a whole bunch of languages and their unique features are shown/compared.