I have one of the most common names in the world*. If I want the 4473 to actually go through then I have to use my SSN. Named after my Dad he has been the victim of identity theft so I'm very careful about everything. I'm not scared to put my ssn on a 4473 but maybe I should be lol, time for my own UPIN?
(*not hyperbole)
Are you sure it's not the Jerry Garcia avatar??