I&#x27;m in that horrible demographic (white uppermiddle class New Yorker who lives in a cool neighborhood) that&#x27;s probably the most valuable in the US, and literally _all_ of my friends use Facebook Messenger as their primary means of communication. Name another service that:<p>1. Doesn&#x27;t require me to ask you for your screenname<p>2. Syncs seamlessly between all of my devices<p>3. Works well with video&#x2F;pictures&#x2F;video phone calls<p>4. Isn&#x27;t swamped with spam<p>There isn&#x27;t one. Don&#x27;t let selection bias blur your view.