There are no flames allowed in this group.
Trolls seem to have a tendency to show up there.
I would say that more technical spam header interpretation issues seem to show up in .spamcop as do questions about whether ISPs are whitehat or not, questions about traceroutes, lookups, the various registries, etc. Julian, Max, the deputies and lots of users tend to read all the groups and will respond regardless of where you might post a question. The .deputies group is for the deputies to post in altho anyone can certainly read it. I read this on the web site and didn't find it very helpful.