I would highly recommend against using this tool, as it is against Facebook's Terms of Service. Robert Scoble was kicked off Facebook in January 2008 for pulling a stunt exactly like this ( http://scobleizer.com/2008/01/03/ive-been-kicked-off-of-face... ). While his fame and contacts allowed him to get his account reinstated in short order, many of us might not be so fortunate.
I'd be curious what would happen if thousand of people used the tool rather a lone researcher.
As we saw with Facebook's censorship and uncensorship of lamebook.com, their "terms" seem to be essentially "we'll do what we can get away with and back-off if enough people push back".