Comments allow users to provide additional commentary on other publications. They are treated the same as base Publications with extra checks and features. Like publications, comments live in the user's Profile NFT and therefore are wholly owned by the user.

Since comments reference other publications, they are subject to the original publication's Reference Module conditions. If a publication has a reference module that limits comments only to accounts who follow the original poster, and the commenter does not hold a Follow NFT, the transaction to comment will fail.

Just like regular publications, comments also have Action and Reference Modules. Action modules define how a comment can be acted on. The Reference module contains logic that determines who can comment or mirror the new comment.