I've always thought of CL as a community/local site, meaning it is up to the community to really shape it. CL can provide guidance and tools, but it is still up to the community; for example, if your community actively uses the flagging feature to cut down on posts that make the site worse, those posts will decrease in occurrence. NYC has ~14M people, so it is just harder to create a community that agrees on what is and isn't appropriate.