While I fail to see where Steemit has any kind of a sustainable business plan, I am quite certain that nothing will result in the total demise of the Steemit forum platform, more so than will some of Steemit's own Witnesses and long-time members. Witnesses like @themarkymark, his sidekick @buildawhale, and long-time members like @steemcleaners @roomservice @bullionstackers @freebornangel @quarantine @bookguy @mack-bot @the-reef @block-power @blockcreate @steemcleaner and others, have done far more to alienate and drive away Steemit members than has anything else.

These witnesses and members are truly the scum of the earth. They don't give a damn about Steemit beyond having the ability to abuse their power to manipulate the system to their own personal advantage, by making sure that the vast majority of Steemit members get nothing for their curator efforts, while at the same time filling their own corrupt and greedy pockets.

Corrupt Witnesses like @themarkymark have stolen huge amounts of money from curators by manipulating the system in their favor, such as downvoting, and so on. They then end up pocketing the vast majority of the curator award pools for themselves and their friends, while leaving the rest of Steemit members (US) with virtually NOTHING at all!
If you would like to remove your Witness vote now, please go here:

https://steemitwallet.com/~witnesses
Here is the value of @themarkymark Steemit account:

Estimated Account Value: The estimated value is based on an average value of Steem in US dollars.

$134,599.24 (Yes! Almost $135 Thousand Dollars)
https://steemitwallet.com/@themarkymark/transfers

What is the value of the vast majority of Steemit Accounts?

My bet is that it is ZERO or close to it, and they will likely NEVER increase much beyond that point, if at all, because the Steemit System quite simply is RIGGED against the vast majority of members by the following members:

@steemcleaners
@themarkymark (AKA @buildawhale / AKA @roomservice)
@bullionstackers
@buildawhale (AKA @themarkymark)
@freebornangel
@quarantine (AKA @the-reef / AKA @block-power)
@bookguy
@mack-bot
@the-reef (AKA @block-power / AKA @quarantine)
@roomservice (AKA @themarkymark)
@block-power (AKA @the-reef / AKA @quarantine)
@blockcreate
@steemcleaner
And Others.

..