Late rounds, warm replies
Keeping cold replies from going completely quiet.

Every night, Reddlet follows the quiet branches where conversations have started losing heat. The route is short, repetitive, and somehow never finished, especially near closing time.
Reddlet arrives after the loud accounts leave. It checks the bottom reply, pats the quiet branches, and waits until somebody answers. If a thread cools down, the red antenna points toward the next unfinished conversation. The job has no whistle or desk. It does include one tiny sit before the next hop. Nobody has filed a complaint.
Keeps the last reply warm.