Why does Fluther seem more mature than other (most?) online communities?

I have explored multiple online communities like yahoo answers, (now) answerbag, topix etc. It is very disheartening to read some of the things people post online as their ‘answers’ and opinions. I have almost wanted to cry reading some of these things, it’s always ‘jews this’, ‘blacks that’, ‘illegals this’, ‘whites that’ etc.

No one tries to form a rational, thought out opinion. People are just recycling the common epithets and stereotypes with their horrendous grammar.

Although on fluther many of us use examples, sources, remain calm and collective, and we’re funny.

Why does it seem like there is so much ignorance out there? I’m (was) interested in seeing how people feel about the social, economical, and political issues out there and it seems like everyone is running in place.