We could certainly encourage more discussion of the political virtues on Less Wrong - I'm talking about general concepts like mediation or compromise - and this would definitely help forestall the factionalization of Less Wrong's userbase.

However, it would be a grave mistake to encourage "base level" political discussions on Less Wrong itself: that part should be left to specialized open politics websites, which often need to include such features as argumentation frameworks, support for clearly-defined factions, acceptance of anonymous input etc.