comments. It allows any user to leave a comment on your Dapp web page. However, it is important to notice the price field and the
addComment()function. The user must pay the
priceamount of OETH to YOU in order to leave a comment on your page!
instance.addComment()function. It takes a user comment from the web form and sends it to the contract in a transaction. In the transaction, the user pays price OETH to the contract in addition to gas fees to the network.