A couple of time recently I've seen a bike being ridden near work with drop bars, but upside down and with the brake levers facing towards the rider. By upside down, I mean as if the stem bolts were loosened and the bars rotated 180°, not set up like bullhorns. I'm inclined to assume that this is a misguided attempt to make the bike more comfortable, but it looked the right size for the rider, who was riding on the bar tops when I saw him this morning. It would seem like the brakes are almost impossible to reach quickly or to cover.
What benefit could this have for the rider?