I would handle the lack of rules not by trying to get a bunch of rules passed, but by acting within the guidelines I and PC have laid out. Then documenting every decision in the mod decisions thread, and probably highlighting a few of the decisions and offending posts in another pinned thread. So, two locked pinned threads: a log of the decisions and then a list of specific examples that tend to illustrate the ad hoc rules that have been developed so far.
If the community objects to any of these actions, they can override the moderators’ decision and the moderators should update their moderation to reflect the consensus.