What has living in your echo chamber showed you about the people in it?

I block [i]a lot[/i], which has made something of an echo chamber for me, albeit, with thin walls. Now the problem with echo chambers is obvious, but since I have no contact with the [i]worst[/i] of SWeeps in opposing camps, they no longer desensitize me to the [i]worst[/i] SWeeps in [i]my[/i] camp. So I'm more acutely aware that there are some real jerks in my camp.