It's a nice way to earn, do I need to make payments to publish an article for people to read?
There is a "Write New Article" button in the top-right corner. You need to pay $0.84 to publish an article. However, if you provide your node's public key, you can withdraw the coins that other people paid to read your article. Since you are using BlueWallet, you would have to provide the public key of their node. Unfortunately, this would allow every BlueWallet user to pay out your earnings.