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So I jumped on the 'free plan' cloud mining bandwagon a few months back(in December 2019)
I know that there are free cloud mining scams everywhere. In fact, cloud mining is more or less a scam at this point. But hear me out.
I signed up for this free cloud mining service in 2019 December(about 27th of December) and I saw that they had a free plan.
So I inputed my details, started mining ETH and forgot about it. Like any normal person.
About 3 weeks later(today), I was greeted with an alert from my Luno app. Turns out that this free cloud mining platform had sent me their ETH minimum withdrawal amount(0.008) minus their free account fee(0.002)
If you don't believe me, here is a screenshot taken about 30 minutes ago.

And here is a screenshot of the withdrawal request.

Yes, I'm also shocked at the fact that I got paid.
So I'm here now to personally tell you that Mastercoin.pro is NOT a scam. Remember, I didn't pay any upfront costs to get that money, and the fact that that's possible is just insane.
I'm not endorsing that you actually go ahead and PAY for any of their services. You can cash out completely free if you're into that kind of thing.
Sign up here if you're interested.