>which may encourage people to cross lines as there is no way for the community to sanction such behavior.

It's also hard for some people to understand that individuals who hold extreme views and use poor sources/facts could, in fact, be people who actually hold those views. They're not trolls. They're not doing it to get a rise out of you. Sometimes, those people are legitimate in their beliefs, regardless of how ass-backwards they are.

And I don't know why people don't understand that.