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How does WhatsApp compare to email? I mean, how easy is it for me to contact MS CEO via email vs WhatsApp? Or my doctor. Or my mom. Or my friend I've not seen in a while. Or????

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It's not that easy to compare the two. With WhatsApp, if you know the phone number of the person you want to contact, then you can send them a message or call them via WhatsApp. Both users need to have WhatsApp installed, but this is not a big problem in most countries outside of the US, since the install base is over 1 billion.

With email, you can usually do a simple search and find an email. Super simple.

And we go to great lengths trying to avoid this because of email harvesters for spam.

However I would not like it to transform into phone number harvesters for spam.

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