https://www.statista.com/statistics/350461/mobile-messenger-...
https://www.statista.com/statistics/350461/mobile-messenger-...
No more than a Ford dealer buying a billboard outside a Chevy dealership. It's not anti-competitive to advertise in the same place your competition advertises.
It is illegal and anticompetitive to be a huge company using enormous resources to squash competition for smaller firms. There are many ways in which this is done. Not all of them are illegal, depending on how you look at it.
My opinion: Buying marketshare is usually bad for the user.
You're telling me Coke can't advertise soda because there's a small local craft soda manufacturer here in town?
When I visited some friends in Chile it was also #1 by far
It's actually really annoying that all my international friends are on whatsapp while all my US friends are not.