Your dedication to this issue is appreciated, but it's hard for me to blame any person who is taking advantage of the rules. We either need to allow people to use SP as they wish (and be content with a certain quantity of lousy content) or else we need to improve the system somehow. I think giving a return to passive investors is one option, which would keep more people on the sidelines and able to earn a return by not having to participate in the content (we know it's not pretty when some do). And hopefully, communities that are well-managed will cut down on the junk also. It's a conversation we need to continue having, for sure.
The key is most assuredly in the communities. You got that right for all the reasons you already know.