I really don't mind answering the same questions over and over again. I don't spend alot of time in the request forum, but I often will check it out to see if any users have posted any nice ideas worth putting my time into.
If the user is requesting a hack that has already been created, I will link them to it or let the user know the name of the coder who released it. I do this because I most of the time know which user released said hack. Most users will find either or, just as helpfull. I havn't really ran into a user who was mad because I didn't post an exact link/location to what they are looking for.
I personally am still learning PHP everyday.

Don't let the titles fool anyone, they don't really mean much to me. The only advantage I see is that if you ask for help, you tend to get a quicker responds (Just my experiance). I have seen plenty of rude threads/post and just ignore them. I don't have much time argueing with people in threads.
I expect people to post the same question/request all the time. There is nothing anyone can do to stop it completely. If a member ask a question that I know, and I allready know someone has asked this before; I'll answer it anyways. Makes me feel better. Those threads are consider an easy post count while still countributing to the community.
I think everyone just needs to lighten up some. Where all here to do the same thing. Install Hacks / Code Hacks, and most importantly, learn!