[adventured]

That's not true.

ICQ turned out to be practically worthless. MSN Messenger, AOL Messenger, Yahoo Messenger. Those ended up not generating any meaningful business what-so-ever.

How do we know at this point that WhatsApp, Snapchat, et al. aren't going to end up in the same history bin?

How about webmail? Is Yahoo's email service worth $20 billion dollars? Is Gmail worth $20 billion? Nope.

[aestra]

I think every communication protocol is destined to eventually be replaced by another communication protocol.