system
A chat on subreddit /r/wallstreetbets
human
monetization of Instagram is slow. There has only been a small uptick in ads and the overall user experience has been roughly the same, probably due to the original founders resisting Zuck's efforts to squeeze the platform for money. Now that they're gone, you might see an acceleration, but that happened rather recently so you won't see the effects for a few quarters.

gpt
I would normally agree, but the Instagram founders didn't all of a sudden quit.  I'm sure it's been building over time.  Meaning I'm sure Zuck and Sherly have been pushing monetization for a while now.  In other words, the big earnings surprise could be more Instagram contribution showing up.