Rated 4 out of 5 stars
A good idea, the implementation needs some work. It should export/import all of one's passwords, as well as the sites that should be ignored in one data file.
I would be sure to encrypted the exported file using GPG on top of whatever encryption it uses internally.
Would I be able to export the file and then import it intact on another profile without supplying the same master password? If so, that is definitely problematic.