Post authors and moderators can turn comments off when they want to bring a conversation to a close.
Why and when should this be used?
Like in-person, all conversations and discussions need to come to an end eventually. Once a post has received hundreds or even thousands of comments, those who started the conversation need to bring it to a controlled end so that they can digest all the feedback, suggestions, and comments received.
We built this feature to allow those in control of the post to acknowledge, summarise and close the conversation until more input is required.