Yeah the community has changed drastically. I don't really notice people being unfriendly to each other and if anything I notice more friendliness and acceptance towards each other. The only issue I really notice is that when people are being mean to each other is they tend to report each other over stupid things and point fingers at each other much more.
Some people just aren't nice and you're going to pass those type of people not just in minecraft, put throughout life, all you can do is ignore them and surround yourself with people who actually care. If someone's bothering you, I'm pretty sure there's a command called /ignore [user]
Otherwise maybe look out some more, there are plenty more nice people.