Understood, thanks.

My feeling: use this talk forum for topics requiring more organization, and the mailing list for the "looser" stuff. Topics here could also be automatically bundled into a periodic digest and the links sent to the mailing list as an FYI.

But personally I tend to use both, often for the same topic, to reach the typically different audiences. And more and more I'm using my blog to bridge this Talk Community subforum and the mailing list, so subscribe and I'll help you out.