You assume that the people who are self voting aren't "good content creators". If indeed they are not, then we can counteract their overindulgent self-voting by flagging (and people are already starting to do that, myself included).
Banning self-voting can only undermine the price of Steem. For instance, I have personally purchased thousands of dollars of SP (and I know many others who have done the same) so that I can influence what content gets visibility on the Steem platform, INCLUDING ESPECIALLY MY OWN. I (and many others) would have NEVER purchased so much, much less held it for so long, if doing so didn't increase my ability to get more exposure for my own content.
What you are overlooking is that it's NOT the authors and curatiors that give Steem value. The authors and curators come here only becasue Steem HAS value, and Steem has value not because it's "earned" by posting and curating but becasue people like my are willing to BUY it with money and HOLD it. It has value because capital (money) is flowing into it. That money flows into it in large part becasue people who acquire and hold Steem have a greater likelihood gaining exposure for their own content. The more Steem one holds, the greater one's voice on the platform. If we only allow that voice to be heard when it speaks of others and not when it speaks of the Steem holder himself or herself, then Steem's value declines.
Were there no other way of dealing with inappropriate self-voting, then I would agree that the damage done to capital inflows by banning self-voting may be worth it. But when the problem is easily solved by other means (like flagging), banning self-voting will do nothing but limit capital inflow and thereby reduce the value of Steem. Lower Steem prices means inferior authors and curators.
Look around, friend, Steem is healthier than ever. New users are way up. The price of Steem is way up. Alex ranking is way up! Growth is exponential. Your panic over self-voting is completley unjustified and unneeded.
Here's the bottom line: Those who want to ban self-voting are mainly folks who seek to acquire Steem by posting and curating rather than by PURCHASE. But it's only the latter that gives Steem value. And folks who are willing to purchase Steem do so in large part becasue they can influence the exposure of their own content.
true... if you want influence buy/earn steem power that's it
it's the same as hashing power, you need to invest and have skin in the game