Actually I would agree that XIV's community is a fair bit better on average. Not that it doesn't have its problems, but most of the time things are pretty good.

In my opinion, it's the hardcore crowd that are the worst.
I disagree, i've encountered problems at all ends of the spectrum. Just as some hardcore players can be stuck up, so too can casuals be really stubborn- Often refusing to accept help and advice and getting quite rude when they are clearly making a mistake but insist they know what they're doing.

There are great people and bad apples in all sectors of the community. The hardcore players are not disproportionately worse.