... but ever notice on the bottom of the forum section it displays that about half the people looking are not registered members...
"About half" is a major understatement. The majority of people looking at threads is only just visitors who CANNOT reply, since they're not members. So it may WELL happen that threads sink to the bottom, have been looked at by many, and haven't got any replies.
Sometimes, when I have the time, I go 0-reply-thread hunting and by giving them a reply put them back to the top. Has happened that after that, the member got MANY more answers.
To be thinking that the Beginners' Forum is the one that is LIKELY to have only few answers is as wrong as can be, as I found out the Beginners' Forum is the one with the most traffic of all. Post something into the regular galleries and ... you either have to be TOPNOTCH, or post a photo with loads of errors. Then you might get replies.
Normal photos, pretty, well-done, nice subject, but not precisely top-notch and you can just about forget it. To me it seems that then people come, look, think "Ah! Okay!" and go again. Done. Means to me that my photography must be utterly boring.
For don't anyone ever think this phenomenon of "0 replies" happened to newcomers only and depended on a member's post-count. Believe me (and I should know), it does NOT depend on that.
But don't ask me what it depends on. I comment OFTEN. I did not acquire my post-count in the Off Topics (back in times when posting in there still added to the post count), playing games and such. Most of it was acquired by commenting on people's pics.
But sometimes I also feel "out of the mood". Or don't have the time! It does happen that people have a life outside TPF. I have heard about that!!