Something else I've noticed. If I click on "updated topic" it will lead me to that topic. (page 1). Now if that topic has more than one page and I don't navigate to the last page. It will remain on my "updated topic" list.
I haven't used the "updated topic" much ... hopefully that issue gets resolved. It's probably getting its data from the "Watched Topics" table buried deep in the Profile.
Regarding the "Watched Topics" table, it seems to work correctly for me (so far) as it isn't showing posts that were only viewed, just those that I've created or replied to. Various columns can be sorted, and various rows can be removed using "Unnotify".