Mellow ads will not accept subdomain. You must have your own domain to be enough serious for Mellow ads. Also you must have ALexa rank less than 1million. It is old info and i did not look maybe there have some changes but only with more restrictions. So, ALexa rank must be better than 1 million.
Only reason i can see can be this one:
"1.7. The website must not contain any content that violates the intellectual property rights of another person, the legal owner of the content."
Because your whole blog is copy paste from bitcoincore.
Of course if this true, there is a one more problem between you and Mellow ads
Alexa ranking has to be under 200K for mellowads.
But yeah, I've read all requirements, but somehow I missed that line
, they don't accept subdomains:
"1.10 The website must have its own domain name and not be hosted on a subdomain of hosting domains such as wix, blogspot, wordpress, yola, doodlekit,
faucetfly etc."
OP has 2 problems.
Edit
on side note
Do you know what is funny? If you google faucetfly faucets and click on second link, you will see that faucet is using mellowads and it's hosted on faucetfly subdomain...