Have you considered that maybe posts without many replies are not that interesting? In My Opinion, I've never replied to SDTOM's posts as I don't find them interesting, sorry to tell you this. I recall your past post about Anonimo, but no offense it's just not a popular brand and thus didn't get may replies.
I find the people here are not cliquish but genuinely friendly (looking at the high traffic on this site confirms this) . Just because they don't reply to your posts doesn't mean that there is something wrong with them. If all you care about is racking up post counts or gathering up replies just to be popular, well then you got a problem. Just my 2 cents