I don't think I've ever felt intimidated by the more knowledgeable Downers. Revere them? Perhaps. Respect them? Definitely. I don't think I ever felt intimidated. Even in my early days when I was a blundering spotty little 16 year old with only a basic knowledge of Tolkien, the more learned members seemed like something to aspire to, rather than to fear.
These days I, admittedly, spend most of my time in the mirth forums. I do occasionally wander into Books to add a point, say something I think is interesting or to point something out that I've noticed. All in the hope of stirring up further discussion.
Weather or not I succeed is a different matter...