Yet another free service gets snapped up for billions, in the hopes that it will somehow generate more than the expended value in ad revenue. Either that or some other magical source of cash influx that will not be spent by its users who are used to getting it free and will jump ship if subscription models become mandatory.
It seems a lot of people still believe that when the internet is involved, tried and true business rules and plain old common sense do not apply. Is the black magic of the interwebs not dead yet?
Last i checked, Skype was ad-free and financed itself through charging for connections to "real" phones and for national phone numbers.
You have no clue what you are writing about.