I don't think it should be that difficult. There are plenty of people in P&S who post absolute nonsense, but at least manage to mostly stay on topic and can make a coherent post, even if the content of that post is moronic. And then there are people like BADecker and Tash who just post low quality and off topic trash which contributes absolutely nothing to any thread.
We delete off topic posts and posts which add nothing in other boards. Why not P&S?
I do agree somewhat, there's definitely a few cases of pretty straight forward off topic replies, or just genuinely low quality posts. Although, I do think you need someone in the P&S section that probably doesn't care all too much about politics, otherwise personal beliefs, and views can get in the way.
So, maybe looking at reporters list there, determining who has accurate reports, and then whether or not they've shown any particular strong views. I don't know the answer really, that's theymos' headache fortunately for us, but I do tend to agree that the section probably does need a little bit more scrutiny, which I do believe theymos knows hence him creating that thread a while back for
elections.