Hmmm, with zero fear I'd probably go further than confronting others' belief systems... That would be just a reinforcement of the game - possibly on another level, but still.

Without fear, I could become a perfect mirror. I wouldn't partake any more in the usual action-reaction games, and this "remaining silent" alone would be powerful enough to catalyze awakening in others. People just threw their usual stuff at me, but I wouldn't play my expected part - wouldn't react with the usual mechanistic patterns -, my freedom would allow me to let it all in, and somehow - through the power of love perhaps - transform it and project it back as enlightenment, understanding.

Anyone who gets to this level can expect attacks of an unimaginable magnitude: the universe would sense that there is a possibility to get rid of the baggage and throw extreme amounts of shit onto this person, to maximally utilize his/her gift in the transformation/healing of reality.

But for the truly enlightened person this is not a burden any more: after all, if you have a machine which can transform shit to gold, then shit becomes a treasure.