The first rule is not enforced. This is pretty much the main issue with the politics forum. I honestly have no idea how you can say you're happy with it. You honestly are telling me that people who consistently insult other users are addressed by mods? That's flatly ridiculous. It's literally the main feature of the politics forum, and the whole shared culture of most of the frequent posters there. There are pages and pages of receipts.
Rule number 2 is virtually never enforced unless it's against a liberal. It's how they banned crowbrow as well. It's how most liberals on here get banned. Meanwhile, the forum gets flooded every single day by troll level threads that are never defended by the OP. Literally all day every day. Most posters are incapable of ever admitting they are mistaken on an issue, and just immediately switch to insults or dishonest arguments. Any actual exchange of ideas is extremely rare.
Rule number 4 is literally what 90% of the posts are. It's usually shocking when you get a well thought out reply, because it stands out so much from the other posts.
Ask
Nobody_Important
or other liberal posters how well rule number 5 gets enforced. I don't think I can even think of a conservative poster who has been dogpiled because there's so few liberal commenters over there that are active. It's basically a rule just for liberals at this point. I can't think of a single instance it's ever been invoked.
If you read those rules, it has nothing to do with censorship. It's just about promoting quality conversations. I don't see that happening often. I see open hostility, dogpiling, and frequent insults as the norm. And then the few liberals that dive into the toxic culture of trading insults get banned while most of the regulars never get addressed.