If you want to remove the effect of SP on rewards and you want moderators on the site, I'm not sure if you even are on the right site.
Have you tried out social medias like Facebook? There you can see at least how many people likes your post, no special rewards for rich users and they have moderators too.
I could recommend that.
I am here because I can see the immensily huge potential this platform has. 1 STEEM could easily be worth 100 times more than it is now if the people running the show here would only just try for 1%. But obviously all they do results in chasing people away from this platform and driving the price of STEEM from 150000 Satoshi when it launched, to a meager 6500 Satoshi as I am writing this now. Of course some people LOVE the way Steemit is doing now. Who? Usually they say "Follow the Money" if you want to know those you're not allowed to criticize.
Well I see part of the potential being a working reward system, which however seems to be too complicated for many people as they're longing after a flat reward system. It would probably be a flat zero then.
Also I do not really see how moderators would help the platform. At that point we'd really see the "you're not allowed to criticize"-phenomenon you seem to be worried about. Of course now high SP users can flag posts/users to below zero rewards etc. but moderators would have stronger power than that and I see no point in it.
There shouldn't be special rewards for rich users though.
Steem Power is a great thing if it couldn't be bought as it meant people who made more content that was liked by the community and / or put more time into curation are the ones with the most power to judge other content etc so it shows a proof of time spent and proof of quality. Proving that you have money helps Steemit financially but it doesn't show that you are someone who should have power on this website.
Facebook is a shit social media site, with a worse community than this and it doesn't allow earning money and you're being pretty condescending to pagandance to suggest that they should go there just because they don't like the website having this particular aspect. Steemit is much closer socially to Reddit than Facebook anyway. The way people interact and are keen to have a discussion is much more common of Steemit and Reddit than Facebook. Facebook is only good for people you know in real life. Interactions with strangers on there are much shittier than on here or Reddit.
I don't know what the solution is to the fact that people can essentially buy their way to the top (which is shit) because at the same time that is part of the funding of the site, but it is one of the downsides of how Steemit works. I don't think making it a flat reward system is the solution either, but the difference due to SP could be less OP at least. All social media and all platforms that have monetisation aspects have pros and cons. YouTube for example has more faults than Steemit, but one of its pros over Steemit is the fact that everyone starts the same and you can't pay your way to a bigger audience and larger amounts of ad revenue. This is a disadvantage of the Steemit platform.
I'm certainly not leaving and I think Steem is one of the better platforms I'm on, but that doesn't change that being a downside of this particular platform. Just like I won't leave YouTube, but it has downsides. I don't see the rich getting richer and this aspect of Steem making it resemble the shitty, real world slightly more as a positive aspect of the platform and I never will, but it is still intrinsically tied into how it works, so it's a negative to accept along with the positives of the platform. I don't quite want what either of you two seem to want, but simply see pros and cons here and you both have some decent points. I also never get up platform's butts either so I won't pretend negatives are positives either (not saying you are, but I won't ever do that).
However Facebook is not close to being a comparable website to Steemit and I think you are being a bit rude and condescending to the other commenter. You should probably cut that out.
Indeed, you should earn respect and not be able to just buy it. I think a vote power cap of 1000 SP max would be beneficial for the platform. Now there is absolutely no balance.