If you look at the four Stars winners, theres a good chance you know who they are. These people are pretty famous and theres a chance you knew all of them before their Stars victory. I am wondering when the person who barely anybody knows wins. The true underdog.
If they arent known by the time they finish Stars then they wont win
You have to get a public profile in the house to succeed, Chels05 is probably the person who made a name for herself in the house, so technically this has already happened
If they're unknown at the end of course they will fail!