I've recently discovered that many, if not most, of my watched profiles already had the unsourced template on them, however they weren't being listed as unsourced due to a bug in WikiTree code until an edit in the biography was made.
I recently did update edits to each of those, so they would show up on my own list of unsourced profiles (but maybe only a dozen or two). I need to be able to work from an updatable list.