The trick is to find a broad enough frontier that you still have a mix of discourse, while still excluding people who will tend towards unproductive garbage. Fo

The trick is to find a broad enough frontier that you still have a mix of discourse, while still excluding people who will tend towards unproductive garbage. For example, my service organization at university: As a whole, the group leaned firmly socialist (selecting for people who were enthused about feeding the homeless tends to do that), but the firm "someone will veto this person's membership nomination" line was somewhere around the middle of the Democratic party: "We need to fix things, but maybe that doesn't require revolution". Thus we ended up with a perfectly wide range of discourse, between the just-left of Obama and the anarchists, without including people who were fundamentally at odds with the groups mission of affecting positive change.