spec:
I usually try to refrain myself from opinionating on stuff where i lack proper knowledge and i'am still a newbie with D (contrary to you bearophile).
It's not just a matter of experience, when there are many interacting parts it's also a matter of intelligence (and people like Timon are more intelligent than me regardless my experience in D). If no one comment I'll put this in Bugzilla.
Bye, bearophile