This is a very strange way of earning that with zero balance you can earn handsome amount of Cryptocurrency.You can build your account in BTC talk forum and participate in different signature/Bounty campaign you can earn crypto by dint of your hard working.You can write constructive articles for web blog and can earn free crypto.If you are running a business accept crypt as a way of payment and earn free crypto.There are some online games through which you can also earn free cryptos.What are other ways by your stance please........
I don't think to share knowledge and experience and help everyone about any too is a work of hardwork in this forum to make earnings from signature campaign .
Leave this because there are many options are available to make free earnings .
First option is to make free collection of Satoshi from multiple faucet sites ( I don't think you can make a sufficient amount of earning easily ) .
Second option is to share links at social media which is like signature campaign .
Third option is to enter in free airdrop to collect free coins ( don't leave any airdrop to skip ) with this technique you can easily make free earnings of about 100-200$ easily avg. Of month .