What bothers me about the quote below is that it completely ignores the fact that like-minded editors usually have the same articles watchlisted; not to mention the fact that we all have editors who when we see there names as the last edit in our watchlist, pique our interest to look at the discussion--editors we agree or disagree with. It's more likely, IMO, to ascribe "blocks" to editor watchlists than private lists, although that could just be naivte.
So now it seems we're destine for the latter, and the best thing we
can do is to let everyone know that the lists exist, and the next time six peopel show up and agree, don't just automatically assume you got six independent opinions-- instead consider the possibility that you got one opinion and five friends.