Spring Cleaning is definitely something that should be done again. Gaians have at times felt like we can't get across our ideas, like nobody's listening. This was perfect for making us feel like we have a say. I mean there are petition forums and the Site Feedback forum, etc, but this was a step-up from that. Our decisions actually directly led to site changes.
A couple issues with it though:
1) It's pretty much the same problem with Chatterbox. I lot of people, if you look through the pages, have great ideas! The problem is people post threads so quickly that nobody ever sees it. Most people don't bother to look past the 3rd page! Something should be done so that people see ALL the proposed ideas. Maybe making subforums would help? Or even just the admins' promise to check each Thread?
2) I know Gaia tries to be fair so that even new people don't feel ostricized, but honestly, maybe they should just for this. A lot of new members just don't know the site well enough to make an educated decision on whether or not to change it. And in polls there's no way to check.
MY SUGGESTION:
Maybe you should put a cap on the Spring Cleaning polls so that only people on longer than I dunno 6 months can vote BUT they can still post in the forums. That way they can't just click a button and move on without knowing the topic.
Also, anyone posts in the threads has to put a reason why the feel the way they do, and can't just agree or disagree.
Or maybe you can only vote AFTER you post, regardless of how long you've been on Gaia. That way people have to post how they feel and can't just arbitrarilly say they agree or disagree just for the sake of agreeing or disagreeing.