When you're referring to marketing you seem to imply there's some sort of marketing budget in play to achieve some sort of monetary gain in the end? I'm not sure what that would be though.

In the meantime I'm using Rust for some personal projects and I'm having way more fun than I ever had with C++. Even procedural macros are a ton of fun to write compared to the template hell I'd face in C++ (although I'm eager to spend some time with concepts).

What kind of marketing? The kind where people blog about what they do?

Who ever called it a silver bullet for anything?