I see myself as a bit of a Jack-of-all-trades. Which is the ego boosting way to say that I'm never the expert.
At one point I was trying to contribute more regularly, but the realization that just because I'm one of the "movie guys" in my group of friends doesn't mean much here on CHUD (where my knowledge and insight on movies is usually sub-par).
I tend to hit up all of the forums engaging in talk about movies, books, tv, music, tech, sports, politics, and religion. Like I said, though, my knowledge is usually pretty average, so I find that my opinion has already been expressed by the time I get to the thread, and I'm not usually one to say "me too" unless I feel I can add something.
Also, I had a daughter recently (19 months old now), and that has destroyed my theater going. I now have to plan 2-4 weeks in advance to see a movie, and I probably average one every 3 months now, so I can't really take an active role during the prime of most post-release threads.
As with many, though, I feel I've learned a LOT, and I realize how much more there is to learn regarding movies. I definitely appreciate the community for that.
I think the one area where I can actually bring something interesting and useful to the discussion is with some of the sciences. As one of only a few scientists on here that I know of, I try to jump in on any thread where I see scientific results being discussed. I love having my undergrads discuss issues of science in the media (both news and entertainment) with me, as I think it is very enlightening for them, so I attempt to do a little of that on CHUD. Sadly, I think there have only been a half dozen or so threads where I've attempted this, and in the majority of cases, I was largely ignored (and once I think I may have been at least partially responsible for driving a heavy posting CHEWER away from the boards, and I felt pretty bad about that). Oh well! I'll keep trying. Maybe I should be more proactive and actually start threads on this as opposed to just jumping in.
In line with this, I consider myself more of a "math guy." I like science, math, logic, and computer code. Areas like film study, literature, history, etc. were always the classes I had to work hardest at, so I'm probably kind of out of place on these boards, but I do love my movies even if I'm not always able to articulate my thoughts on them and deconstruct them as well as most of you.