Major performance problem with std.array.front()

[Vladimir Panteleev]

On Sunday, 9 March 2014 at 04:18:15 UTC, Andrei Alexandrescu 
wrote:
> What exactly is the consensus? From your wiki page I see "One 
> of the proposals in the thread is to switch the iteration type 
> of string ranges from dchar to the string's character type."
>
> I can tell you straight out: That will not happen for as long 
> as I'm working on D.

Why?