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One thing I've been bothered by is that there are often several articles on a single issue in Salon at any one time. For example, at the time I write this, there are three articles dealing with the issue of US troops in Iraq kidnapping innocent women and children and putting them under duress to force the surrender of a wanted family member.
Now, what I want to say about that is identical in all three articles, because they're all dealing with the same issue. So how do we handle that? In this case I've posted identicle letters in the comments for each article, but I'm not entirely happy with that solution. Will this be dealt with by some sort of cross-linking in the planned upgrades?
As for the names/handle/anonymous issue, what you're planning sounds about right to me. I've noticed a few instances where it was pretty obvious that people were pretending to be Democrat voters while they were obviously pushing the straight GOP line, and hiding behind pseudonyms, mostly in the debate over whether to filibuster Alito. I think being 'careful' of any post that isn't signed is a good idea.