Are we talking past each other? How is that anti competitive? This is literally the opposite: they embraced and validated their competitor by making them a huge offer, showing that it pays off to compete
I disagree that it is anti competitive, it is not "killing" competition. Killing competition is setting prices that makes the competition go bankrupt, it's assassinating people, it's pushing for changes that prevent the competition from working in the same environment, etc. here nothing prevented instagram from saying no and getting bigger.
