1. Most of us keep repeating the same questions over and that doesnt do any good to anybody! How about taking time to search the forum before posting the question? It takes little time to go through the results. More often than not, the reply is going to be "Heres the answer yada yada yada, but try this link from previous posts!"
2. Questions like "I am getting a NullPointerException - help me" arent going to help either. I would use exception.printStackTrace() and post the stack trace. Its a lot helpful than just english.
3. Similarly, looking at a 200 line cut/paste program is irritating (to be polite!). Let alone formatting. I know you cant help if its a long program but you could try stripping of a few lines. Lines like the ones that print out pretty things.
4. When explaining a concept, a line of code helps a lot. Use lines of code whenever possible. So a not-so-smart-person like me, can learn easily.
(Quoting from DML) of course thats just my opinion, I could be wrong.