They are especially valuable to HN because most HN users have not used Rust for a long time [0]; they're still approaching the language. — I know your questio

They are especially valuable to HN because most HN users have not used Rust for a long time [0]; they're still approaching the language. — I know your question isn't specific to this submission, but Rust is a new language, built to support an ongoing research project. Very few people, if any, could have written a large complicated system (apart from Servo). Even if an expert were to write an article explaining how they use Rust, it would be of little use to most people using Rust at this point in time. Example: Nobody was explaining how to use JavaScript for large complicated systems in 1998: the language itself wasn't ready for this kind of usage, and adoption hadn't reached the critical mass required for certain discoveries (language quirks, unexpected ways to do things, ready to use libraries and frameworks etc.) to be made. [0]: Substitute Rust for any new language.