Here's what I've noticed.
Say you post at noon. When you first post it's on the first page - by dinner, more people have posted new stuff and your post is now on page 2. By tomorrow morning it may be on page 3 or 4. Many of the members here, go on in the evening before bed. If they're tired they might only see the first two pages and off they go. Certainly, don't take it personal.
I've seen your stuff and you do great work. Really, don't take it personal.
Look at the activity this post of yours has gotten. It's grown to 14 pages.