I know. But I find it too difficult to use. Maybe it is just me. The big idea behind MyDef is if the programmer find something is more natural, he should at least try it.

I (the author) do not really care if anyone use MyDef per my implementation. One could implement MyDef in Lisp, Haskell, or any language, and I would be happy. A meta layer that individual programmer can control, rather than being sold in wholesale every single time.