...know if it has some gotchas, though (as I don't use RAII in D...).

...…), that's a imho bastardisation of RAII that destroys most of the benefits.

Also...

...but whether your example should be called RAII is an entirely different debate, and one...

Yeah. I've used RAII plenty in D without problems, but the fact remains that...

...code ...
  } // mutex is released

It's still RAII, as the destructor checks to see if...

...an invalid state and thus still follow RAII paradigms correctly?

The amount of bugs and...

Throwing constructors are fundamental for making RAII work in a composable fashion.

If constructors are...

...I know, the only known bug in RAII is https://issues.dlang.org/show_bug...

D was designed to have RAII, and it does. It's just that the implementation...

I completely agree with this opinion

RAII is nowadays described as C++ nicest , more important...