The trend coincided with the rise of anonymous Q&A apps (like Ask.fm or early NGL). People used binary codes to confess secrets or feelings without taking direct ownership of the words. If the recipient didn't understand it, the sender could play it off as a joke. If they did translate it, the message was delivered.

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Aunque inicialmente se consideraba una broma inofensiva, el uso de binarios conlleva consecuencias negativas para los dispositivos: Pérdida de conversaciones

WhatsApp utiliza sistemas de lectura de texto de izquierda a derecha y de derecha a izquierda (como el árabe).

Around 2020, a wave of websites and mobile apps emerged to automate this process. These "Binary Translators" allowed users to type a standard message—like "Te quiero" (I love you) or "Feliz Cumpleaños" (Happy Birthday)—and instantly convert it into a long block of digits. Users would then hit "copy," switch to WhatsApp, and "paste."