ABOUT THIS CONTRACT... This contract allows users to post public broadcast messages to the Geode Blockchain. In this contract, to endorse a message is to upvote it (a kind of like button that might boost it's visibility in the front end). This contract also allows users to:
- follow and unfollow specific accounts,
- reply to posts,
- declare their interests,
- see paid messages that fit their interests, and
- be paid in GEODE to endorse or upvote a paid message