I've had some crewchiefs marshal me around the ramp in similiar fashion... It's all in good fun as long as they can remember to give the right signals and the crew doesn't run into anything. In the video, the kid did a pretty good job except that when the plane needed to turn left onto the taxiway, he was still signaling "straight".
Now if there is a painted line to follow and it's not in too tight of an area (as appeared to be the case in this video), that's allowable and common. Personally though, I prefer the crew chief to signal exactly where I'm supposed to go even when there's a line to help out, and as a result I've taxied right past guys who don't signal the turn into the parking spot, or straightened out early if the marshaler tells me to stop turning too early. But if there's ever a question, the right answer is to just stop and if necessary, plug the headset back in to discuss it. I've never taxied into anything so I guess I've been using a decent technique.
In any case, yea it's a bit unprofessional but it's also a deployed location and from experience (3 deployments to fairly remote bases in the persian gulf region) I know that as long as the chief keeps it under control, a little goofing is an excellent way to keep the place from really getting to you. Everyone has a different opinion and different squadrons need different leadership techniques though, so what's acceptable in one squadron may not be acceptable in another.
To follow up on Hornet's previous post...
Yea, it's easier to relax when your troops are sharp but as you say, your troops are a lot more likely to be sharp if the standards and expectations are high. Most military personnel, officers and enlisted alike, perform better when they are expected to excel and held to high standards. In a struggling squadron, you bet a goofball crewchief would get slapped for acting like that, and the aircrew would also likely get slapped for filming it. But in a squadron that's already at peak performance, in my experience it's not only acceptable but beneficial to loosen the reins a bit and let the guys have some fun on the job as long as safety and the mission are not negatively impacted.
IMHO.
