Sharing Your Card
The card is the hinge - the one frame that is both the old and the new.
The card: your freeze-on-beat timing, your best held frame, and your transition score across all the freezes you made. The card is a single still - the hinge - because that is the whole format. You are not posting a clip, you are posting the frame that a clip is made around.
Why the timing is the share: a clean freeze-on-beat is a skill you can point at. "I nailed the hinge three times in a row" is not a feeling, it is a record. The card makes the record visual, and the visual is the one frame people already screenshot - the held moment.
The follow-up hook: pin "show me your hinge" - and the thread becomes a wall of held frames, each one a person's best freeze. The format rewards the still, and the still is the one thing that survives the scroll.