I've been a member of this community for a few years now. It is my single most reliable go-to community for complex technical questions. Forget SF Premiere support - the top posters on this site probably know more about SF architecture than SF's own dev team!
I started here as an apex/VF newbie. I am just now reaching a level of knowledge where I can start giving back and answering questions myself. What I love about this site is that it's not just about helping people with one-offs, its about establishing a base of knowledge that can be referred to indefinitely. It has made me be more careful about what kinds of questions I ask, and how I phrase them to make them the most helpful for others with similar issues.
Thanks to all of you posters who go through unanswered questions and spend hours helping the rest of us out. (Mohith you are one of them!)