Happy to read this. My own gripe is open source projects that are CoffeeScript-first. CoffeeScript is a tool. Some people like it, some people hate it, and some people just don't get a big enough win from it to care. JavaScript is the native language, and to expect someone to read documentation or source code in something that might not be familiar to them is a frightening direction or tendency.
If you are writing docs, you should be writing JavaScript.