The content of the title is a question that anyone should take at a time from the moment they begin to care about Steem.
Yesterday, I saw a movie called "I am Roh Moo Hyun" with my seniors whom I think of as adults. And you made a post about him.
Https://steemit.com/kr/@cjsdns/5xjysm
After watching the movie, you were talking about Steem and block chains for a long time and you asked carefully. "Is it possible that somebody can not build a site like Steumt?" You seem to have thought that if the similar thing is made, the charm of Steem drops.
There are now two block chains to issue and prepare white papers to try to provide similar services to Steemit. One is Cine Leo and the other is Akasha.
Akasha is a form of dapp in the etherium block chain.
I do not know when these two can be made, but even if they are made there is a fatal weakness. Centralized exchanges based on bitshare http://www.openledger.io/ have a fatal weakness in centralized exchanges due to block times of 3 seconds (implying that users are not real-time transactions) and transaction fees. Securing liquidity If you think about why you are experiencing difficulties with the block-chain-based exchange, this is not possible with the fee-based transaction fee system), the two services will be successful. The possibilities are very sparse.
This is because you post to Steumit, edit the article, make recommendations, comment on recommendations, and pay a commission every time you make a comment. The block-chain-based sns service is essentially a blockade of the block, not a block chain that adopts a free commission policy.
Steem is the only block chain I know that currently has a free commission policy.
The feature of the block chain is that it will be used in the process of development and commercialization, which was originally designed to be a block chain. A typical example is Digibit. I do not know what DigiByte was originally intended for, but I found it in the middle of the game. And according to 
Https://steemit.com/coinkorea/@pliton/digibyte-citibank
Cryptography can be exploited at any time. What is important here is that the block time and commission policy of the block chain will serve as a decisive basis for exploitation. You can not provide real-time chat service with block chain with 10 minutes block time. You can not provide services that cause many transactions with block chains that have paid commission policies.
Services like Stimit can be created in other block chains, but they can not be successful. It's the developer's freedom, but it's your freedom to use it. Technically speaking, the POW series and the POS series are difficult. I think that only the DPOS series can develop services like Stimit.
That does not mean that Etherium, which is the basic basis of Akasha being developed, is a bad block chain. Etherium is the view that Etherium is a service that needs to be developed.
Perhaps there is a possibility that a service such as steem will be developed and succeeded if it is developed in the form of a dock using smart contract on the EOS block chain which aims at a free commission. Even so, Steem will continue to enjoy the pioneer premium that started SNS for the first time, as Bitcoin has a big influence on the cryptographic pioneer.
Perhaps if you do a sns service in a block chain, which is a paid commission policy, you might be able to do a paid sns service (added content).
Thanks for reading.
