It seemed like a good idea. A free haircut! Why not?
If the goal was to meet chicks, then mission accomplished. If getting famous on youtube, the jury is still out. However if the primary reason for pulling this stunt was to get a good hair cut without paying for it....well...he probably would have been better off coughing up $10 and spending 20 minutes on a professional trim.
When I saw this, I couldn't help but think about branding. Hear me out on this one. Think of this dude's hair metaphorically as a logo, brochure, or websites–some sort of collateral a company's been neglecting. They know their unkempt style needs a little TLC. So, instead of hiring a professional with a proven history of creating presentable material, they refer to the masses. Surely, the more input given, the better the outcome, right? Problem is, everyone isn't working towards the same goal. Suppose our haircut guy had a photo of Billy Ray Cyrus beside him on an easel. With the end goal in mind, the crowd would have been more united in their objective.
A clear set of brand guidelines reveals to employees how the company wants to be judged by the general public. Whether that image is a rock star or a polished professional, the process is the same. Don't hand everyone a pair of scissors and tell them to go nuts. Hire a professional if necessary. Decide beforehand what impression you want to portray. Then make sure each subsequent decision is a step in that direction.