It's a kind of new platform like Steemit where you can blogging and share your photos. Yes of course you can earn by blogging. And must be you can earn crypto currency . They consider themselves to be a “crypto agnostic publishing platform”, where both authors and readers are rewarded. 

Not only by blogging or as author you can earn by reading also.

by click the link you can joining Publish0x .

Yeah you can earn by tipping like (upvote). By tipping function you can choose how much you give author and how much you take for yourself. You can only tip one person every 10 minutes.

 Live pop up in-browser notifications of users tipping each other, including when someone tips you. 

Overall it is good for blogging and maybe huge opportunity for new author who wants to blog.