Regarding Odin and Hare, I'd argue most people would easily be able to tell them apart from the syntax alone because the declaration syntaxes are quite different. And most people judge a syntax pretty much solely by the declaration syntax itself.

Regarding RAII, I explain in another comment (https://news.ycombinator.com/item?id=32629951) the issues with RAII and what it requires to be useful. Odin has the similar rule of "no allocation without an allocator" but has the implicit `context` system which passes the current context's allocators around. Odin also has core library support for valgrind, callgrind, memcheck, and soon helgrind.

Odin has features (which this article does showcase) which are akin to RAII but are not attached to the type system. And as I explained in the previous comment, RAII wouldn't even make much sense in Odin (or Zig for that matter) and would probably never a good idea to add it later. There are better alternatives to RAII for languages such as Odin and Zig.