It may be better than Reddit, but it's still not designed for political discussion. The voting algorithms lead to echo chamber formation or vapid, emotion-driven comments being given positive feedback without careful moderation. Human nature combined with anonymity means comments can dissolve into pointless bickering. Basically, it would require a ton of moderation(with the discussions picking up on the biases of the moderators), and even then it would still devolve with many comments about illegal immigration, gender issues, or pretty much any other social issue that involves identity.