If I am available I definitely don't mind helping someone make an item. But do they really except a level 100 player to drop everything for them? I think they do, they certainly act like it.
If I am playing the game, and am busy, why should I stop for every request? I can make nearly anything in game now (except food) and I just can't stop and make things for people too lazy to check the consigners or to seek out crafters their own level, they do exist.
I barely even check market anymore, I just ignore the channel except when I'm really bored. I will offer to make something if I'm near a vault and machine and people bring me the materials, but they never do. I will continue to act the same way, and force the newer people to play properly instead of having everything handed to them