I agree with the personal ferrymen part. I will sit at the base and wait for everyone that I can see on the map at base, to either come to the helo, or find another piece of transportation before I leave. But what tends to happen is, one person will get in and instantly tell you to take off and take them somewhere.
Another thing that I find to be annoying is when people get into the co-pilot seat of the Hummingbirds so that they can transport themselves to where they want to go. It's annoying because other people get in that same helo with them, thus making the helicopter pilot role null and void.
Best part is on EU1, when there is a jet in the air and it's hunting for that tasty helicopter booty, you evade it's missiles for a while and decide to land the guys a little further away from the LZ than you would have liked. But you always get those people that moan at you for doing so, but how I see it is, it was either I landed here safely and you all jogged for a bit. or we all died horribly in a fireball. good stuff.