It's not silly. I had the same fears at first. Well, when you do get around to posting, I'm sure there will be tons of people learning from you and your view points.
Cliques form naturally, it's not like the cliques of high school lol. And ah, I see. You won't get to know anyone until you expose yourself (I learned that one the hard way) and I'm positive you won't sound stupid or dumb. You seem like a pretty intelligent guy!