I guess you have to ask yourself "What do I expect from this community?"
I looked back through a few of your recent posts and I didn't see anything where anyone was even remotely rude or unfriendly towards you. I am curious what sparked this post. But! You have to consider that this is a pretty large forum and in so, you are going to have a broad spectrum of people. Text can be misconstrued easily since you have no vocal tone to go off of - are you taking things the wrong way? Are you being overly sensitive? As Lady Ohh put it, this is the internet and it is NOT serious business.
I haven't been here too long but from my general usage of the site, everyone here seems pretty friendly. I haven't felt excluded or singled out. I have seen a few people post that seem to have a certain "attitude" about them (but they aren't doing anything wrong and you will also find these people on every forum you visit.) Are people not responding to your posts? I have made posts in less visited areas of the forum and not gotten responses, but you can't let that get to you if that is what it is.
The only place I've really seen people get really wound up is in Quarantine (or threads that subsequently get moved to Quarantine). But that is what that place is for.
So, in this sprawling post, I ask you again.
What do you expect from this community?