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RE: First time using Steemit, some questions: Security and Centralization?
- I think it would be possible for 2FA to be used with a blockchain, but who would be sending the code in a decentralized network like a blockchain? However, multisignature accounts on Steemit do exist, so you can make an account with several private keys if you wanted to.
- I think the centralization here is to prevent obvious spam from entering the network. Obviously a freshly created account dispenses little value in a vote, but if you can create thousands instantly, then you could exploit the rewards system pretty easily. However, I strongly agree the centralization should be avoided and I wish a different approach was used.
- Every witness on Steem runs a node that produces a block, so there is a decent amount of synced nodes, but yes, still not as decentralized as other blockchain networks.