-wi on default?

[bearophile]

They are discussing about having -Wall on default in GCC 4.8:

http://gcc.gnu.org/ml/gcc/2012-04/msg00087.html
http://gcc.gnu.org/ml/gcc/2012-04/threads.html#00092

In D.learn I've seen plenty of people not use -wi (or -w) in D 
programming, and this has caused some troubles.

So what do you think about having "-wi" (and even -property too) 
on default in D (and have a compiler switch to disable warnings 
on request)?

Bye,
bearophile