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RE: How Does Steemit Prevent Spam???
Well, captcha comes to mind. That would block bots as spammers.
Human spammers are a different story, though. The community can eventually outcast them. With some friendly tools like downvote, report, ban, ...
Block chain cannot use captcha because anyone can broadcast a transaction.
I see. But this can be two different issues:
Or do I just don't understand it? :)