What does the "listed items" count include?

In places on Listal, I see "Listed Items" and a count beside a user's name. What does this count include? My first guess would have been the number of items in the user's own custom lists. But that doesn't seem to match at all.

It should be any items you have added to a watched/owned list or rated list. It does not include custom lists.

Oh, that explains it all. Thanks a lot :)