--- GenesisMining has its terms set up in a way that they can't be held responsible under any circumstances. --
Agreed. This is by far the most used tactics by companies to evade liabilities to their customers.
Also, some of them uses confusing words on the terms to make it difficult to understand.
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Just for fun, maybe GM is based on a location which have a higher power cost than hashflare that makes that astounding payout difference.