It's often the shortness of post, which tells it. If you are a highly motivated amateur, then you want to show the other people what you are doing, you are proud of your project. So, you start to describe your project in all colours, in order to get a helpful help.

A homework poster has put so little efforts on the issue, that he has no glue about the exercise at all. So, not actually knowing what's going on in his homework makes him unable to ask the right questions or to give the needed details. He can only cry: "Please, send me code!"

It's not a proof, but what I have experienced many times here.

Again, it has nothing to do with refusing people to help. Just the opposite! But there's a difference between recieving help and cheating!

Every poster has the chance to recieve a universe of help from here. But he must prove to have made his own efforts on the subject first.

Kai