The beta review form is STILL not ready for prime time, it does "overide" and "overwrite" existing data in a profile. Again, this depends on the database you're saving from, so don't overwrite, but many still do.
Let's see, the beta review form was supposed to become permanent in February. 3 months later it's still not ready. The "alternate" issues (user submitted alternate data as the default in the beta review form) alone, should be enough for them to take this off the site and back to the drawing board.