The HUD-less mode is nice but it would put you at a disadvantage.
I'd totally play that way if there was a server that enforced the setting for all players, as well as friendly fire penalties.
Then people wouldn't be so fast to pull the trigger as soon as a something moves. I think it would make for a more interesting experience.
"Money doesn't exist in the 24th century, the acquisition of wealth is no longer the driving force in our lives. We work to better ourselves and the rest of humanity." - Jean-Luc Picard