Well said, but I'm not sure it's quite that black and white. If the platform is to succeed long term, the marketplace aspect is of the utmost importance, Steem has to be valued as a currency, in and of itself, that can be used to buy goods and services. This can only happen if high earners, such as yourself, stop exchanging their Steem/SBD for US dollars (etc.) and instead use it directly to make purchases, so that it flows into and out of more hands becoming a valued currency, otherwise it ends up in the hands of speculators who just sit on it, waiting for the price to go up, which achieves the opposite. High earners will not stop buying dollars with their Steem until Steem is worthless, so the price has to hit rock bottom and this will separate the wheat from the chaff.
I hit the power down button for the first time, yesterday-not because I'm selling and running to fiats but so that I can power-up when the price crashes, in the hope that the community spirit will keep Steemit alive. I have to do this because I just can't rely on my posts earning me SP- the poem I posted yesterday made about 38cents and it was as high quality as any on here. However, I think the quality issue is secondary and would be sorted out if Steemit became mainstream.
The biggest problem with the platform is too much Steem/SP/SBD concentrated in too few hands, preventing it from becoming a real currency. It's very much like the primary school song, Magic Penny-"hold it tight and you won't have any, lend it spend it and you'll have so many, they'll roll all over the floor".
Personally, I think that everyone should have the same voting power, which should not be linked to SP, if possible. If that had always been the case then the currency would have been in more hands and the price would not have spiked in such an unrealistic way, it would have grown slowly and surely because instead of being hoarded by speculators, the community would have started using it as a currency.