liudr:
Saying "RTFM" seems like hitting zombies with a bat.
I believe that zombies are vulnerable to blunt impact trauma, provided it is directed at the cranium, and delivered with sufficient force. 
I might be mistaken, but I get the impression that there a lot of people who buy just an Arduino, and not one of the starter kits. And it seems that this occurs before doing much reading on the various forums and vendors' websites. That seems the biggest challenge -- to get people to do some reading first, before buying just an Arduino and then asking, "How do I do X?". Alas, liudr, this is the way of things in many areas, not just Arduino, and if you spend enough time on any topic-specific boards, you'll see that this pattern repeats ad nausem whether the topic is Arduino, the AR-15, electronic cigarettes, or any other thing that has a forum associated with it. One thing I notice is that other forums almost always have a 'Getting Started' or 'newbie' sub-forum, with stickied topics covering the essentials. We don't have that here. Anytime I hit a new forum, that's always what I look for.
I wonder how many newbies read the Getting Started pages before posting. Might be interesting to see some site statistics on what pages here, other than the forum, get the most traffic.