Also maybe worth thinking about, is to an outsider its fairly daunting to approach a group of people who know each other fairly well. So they may FEEL more ignored than they are. If that makes sense. Say the pst the make is something that generally would not ge a reply no matter who posted it, they may feel that its just because it was them, as they are already a bit...lets say nervous...about putting themselves out there.
This goes for all places on the forum, not just the chat threads.
Now, this is not the fault of the members involved. Its just one of those things. But this goes a little way of why newer members (and some older members) feel very ignored.
I tend to make more of an effort to reply to newbies threads...as even though it was a long time ago, I remember making threads and getting no replies while watching other threads on the same thing (or something similar) fill up instantly. Hell that shows how long ago this was doesn't it...when replies were hundreds in a few mins on season