Using glog's design for Phobos?

[bearophile]

Denis Koroskin:
> Probably, that's because you don't write complex software with lots of  
> independent modules that run for a long time.

Here "large systems that run for a long time" is the key, where long time may mean months or years. Logging is not just to debug.
Recently I've seen languages that have even built-in logging features :-)

Bye,
bearophile