On the Smoke blockchain there are two types of posts: active posts and paid out posts.

A post is active for 7 days after publication. After exactly 7 days a post is closed and rewards are paid out. Once rewards are paid out a post can not be edited anymore.

Posts are active for 7 days because it allows curators to find the posts and posts to gain more visibility. During that period curator upsmokes (upvotes) reward the active post. After 7 days upsmokes do not pay out rewards anymore.

At the same time, when somebody plagiarized content, or maybe impersonated somebody else, the 7 days period allows the curators to remove their upsmokes and withdraw rewards.