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     7 years ago (edited) 

    Be careful of operations that claim to offer yields as high as this, they are always Ponzi schemes. Most reputable mining operations offer yields around 25% - 50% per year, whereas Sierra Hash claims to give a ~3000% which definitely puts it in the Too Good To Be True category.
    If you deposit bitcoin with this site, be prepared to lose it.
    You can read a full scam report here: https://www.scambitcoin.com/sierrahash/

    @SteemCleaners should take a look at this

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       7 years ago  

      This is much faster and safer than mining and investing in ponzi schemes
      https://steemit.com/power/@kayyam09/increase-your-steem-power-for-free

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