Have you considered borrowing some similar functionality to the US Congress Bill site?
Have the Title and under each title have tabs or drop down list for (Summary, observation, detailed …, draft bill, merge with, locked for implementation, etc).
Maybe a indicator for no actionable request, or indicate idea needing significant fleshing out?
In addition maybe implement a wiki type functionality where a user could flag a topic for crowdsource help? This might make moderation workload easier?
I love the site and understand its growing pains hope this turns into a massive success. Thank you.