Which feature in Slack is designed to reduce clutter in conversations?

The feature in Slack designed to reduce clutter in conversations is Threads. Threads allow users to reply to a specific message within a conversation without disrupting the flow of the main chat. When a response is sent as a thread, it keeps the primary channel free of numerous back-and-forth replies, which helps maintain clarity and organization. This is particularly beneficial in busy channels where multiple conversations might be happening simultaneously, allowing participants to focus on specific discussions without being overwhelmed by unrelated messages.

Direct messaging can facilitate one-on-one communication but does not address clutter in group conversations. Channels are utilized for broader discussions among groups but can become crowded without the use of threads. Integrations enhance functionality and do not directly impact the organization of conversation threads in Slack. Therefore, Threads serve the unique purpose of maintaining orderly communication, making them the correct choice for reducing clutter.