1. Don't worry about a single mismanaged spam post. A single instance of spam isn't going to bring a site to its knees.
2. Posts on meta should provide context around Smoke Detector/Metasmoke, *if* we are throwing links to the communities. This context allows users to understand our goals of reducing spam on the network, shows what we've seen, and why we are proposing changes.
3. Discussions in chatrooms are good, but limit the appearance of ganging up in site rooms.