I was watching a category and then decided to unwatch it. I went to my preferences and removed it from the Watched section and then I saved my preferences. The category no longer showed up in the Watched section of my preferences. Unfortunately I continued to receive emails from the same watched category. When I went into that category under a topic, I saw in the Watching pulldown, that I was indeed, still watching that category. So I selected that pulldown and muted the category. I’m thinking that will now work, but it’s a little confusing when you remove a category from your watched preferences only to find out you’re still watching it.