UPDATE: Meta has clarified how WhatsApp usernames will work. Usernames are not live yet. Even if you've reserved one, the feature itself will roll out gradually later this year. To stop impersonation,
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Loading velocity curve…
—Views / houraverage velocity since it published
—Peak velocitythe hottest sustained views/hr it ever hit
—vs. their normalpace relative to this creator's own baseline
—Engagementlikes per view — real engagement is hard to fake
—Agehow early Slope caught this surge