Anyone else getting tired of #Rust getting the credit for (G)ADTs? 

No? Just me?

#ocaml, #haskell, #StandardML, and #scala among others had this long before Rust and without the complexity of the borrow checker or lifetimes. Rust moves this concept of type system as bug prevention system forward for systems programming, but there is a long history of good compilers (targeting application development, not systems) that did this already (and in a few cases - better!). I am tiring of the narrative that Rust is the ”*only* memory safe  language"...