How can users manage their message threads in Slack?

Users can effectively manage their message threads in Slack by clicking on the thread sidebar to view responses. This feature allows users to see all the replies to a specific message in one consolidated view, making it easier to follow conversations and keep track of discussions that branch off from a main message. By using the thread sidebar, participants can engage in more organized discussions without cluttering the main channel, thereby enhancing overall communication flow within a team.

Creating new channels for each discussion is not an efficient way of managing threads as it can lead to an overwhelming number of channels and disjointed conversations. Using private messages can limit the ability for other team members to participate in discussions, reducing transparency and collaborative input. Tagging users in the main channel can help draw attention to specific messages but does not provide the threaded conversation structure that allows for easier management and retrieval of related replies. Thus, the ability to click on the thread sidebar for responses is a much more effective approach to managing message threads in Slack.