Bug reports on Gnus from Emacs trunk

[Christoph]

With the massive amount of development that is going on in Gnus, how 
important are bug reports right now and how/where should bugs be 
reported? `M-x gnus-bug' or the emacs bug tracker? I'd hate to waste 
people's time on stuff that would be fixed in the next commit or two anyway.

I am new to Gnus and it is difficult for me to tell what is an artifact 
of development or a real bug.

Thanks,
Christoph