Huh? Besides Mozilla itself using it in the browser in several backends, there are tons of places where its used in production (and several articles on HN on the topic).
Where do you see all those demos who say "I'm not using this for anything"?
I've seen articles on Mozilla using Rust, Dropbox using Rust, MS using Rust (rustgrep used in VSC but also something in Azure IIRC), Google using Rust (Google Fuchsia), Facebook using Rust (Mononoke, etc), and so on.
Been a lot of fun to work with. Having spent 10 years doing C++ professionally before, I can't see myself ever looking back.
Once product is public later this year, I may see if I can talk more publicly about it.
It works really well.
If we were to do it again, the core Rust lib would do much more and the platform native code would only be things that need to be like UI and notifications.
I think the problem is solved by paying less attention to the stuff you care about less, and/or seeking out more production(y) uses if desired by looking in places where it's already common, such as /r/rust, where the content ratio will naturally fall more favorably towards production uses, libraries and advanced discussions since a minimum level of experience (or at least interest) can be assumed.
Edit: To be clear I'm not saying anyone isn't using it, this is just more of a comment about the impression I can get when I hear about X tech is so cool, but that's most of what I hear and at some point I want to see those same articles about real world use / experiences. I'm aware Mozilla and others are using it.