An Issue I Wish To Raise Awareness On

[Kagamin via Digitalmars-d]

Hmm, if proper implementation of a shared smart pointer is 
impossible, it probably means that such smart pointer should be 
typed unshared when passed around. But then it doesn't make sense 
to call unshared destructor on shared smart pointer anyway, 
because it's not designed to be typed shared. In this case 
absence of shared destructor will indicate that the object 
doesn't support being shared and the compiler should reject the 
code.