What? You think other languages don't have "fan-people"? People who like Rust tend to like it very much, and it does provide a real solution to problems that C and C++ create, while providing a no-compromise performance story. So why wouldn't people talk about it?

Perl had evangelists, Ruby (on Rails) had evangelists, C++ had evangelists, Java had evangelists (some would say Java even had apostles and Messiahs...), almost every language has evangelists.