I used to feel like that too Seacliff, and can understand what you mean, but then realised that it was unrealistic to expect a comment on every single post I made.
If every post made was commented on, we would never have time to read them all!!!
There must be thousands of members on GN. Often people agree internally with posters, but don't feel that a response is expected or required.
The other thing to remember is that many posters don't have time to read all the threads and posts, so they just skim through them for a flavour of what's going on.
It's not a personal thing, when people don't respond to you. Other posters can't know that someone may be sensitive soul and needs a response.
To quote you: I see you chatting happily most days.
To become a regular, (if that is what you would like to be) you actually have to post, then people get to know your name. It doesn't have to be anything smart or clever, just a comment.
I'm well known for the inane drivel I sometimes post or the mess I can make of the games threads, but people do know my name!
, albeit for the wrong reasons. 
There is many a thread, I have stopped in its tracks. (Probably bored people to death).
I could get really upset that hardly anyone has acknowledged my very professional photos
of yesterday's meet up on the Glesca Grannies thread, but I'm not taking it to heart. ?
.
I know I'm not explaining this very well, just trying to encourage you to hang on in there!!