Cool, but, this just encourages people to rely on hashmaps being ordered by insertion. The nature of a hashmap is not one where you rely on the ordering. This

Cool, but, this just encourages people to rely on hashmaps being ordered by insertion. The nature of a hashmap is not one where you rely on the ordering. This is going to trip up newbies who then move to other languages. Some comments on the post don't seem to understand the changes, for example, the C++ comment saying that std::map is ordered, so this isn't a strange change. The difference is that std::map is a red-black tree implementation, which has a traversal order, not a hashmap with insertion order. So there is already confusion.