Ya know..i've thought about this before to try to understand the logic and the reason I don't get mad and respond with "duh...search!" is because I absolutely hate forums that are FORUMS to ask questions and get answers. That's the whole purpose of a forum, correct?
Sometimes it is easier to simply have a thread that you can relate to. yes, you can easily find answers by searching, but a lot of the time it's easier to post up and get some feedback regarding your specific situation.
Now, the reason we have a lot of newbies coming in and beginning their first thread with "sorry if this sounds stupid" or "sorry i'm a complete newb" or something like that is because they've experienced that crap ass answer on another forum.."there's a search feature..use it". I hate getting that answer, therefore, I won't ever say it. People know it's there...but people would rather have a response to their questions.