I think that they are preparing for the future where everyone will realize that the whole Facebook is a user data abuse (and more because they are tracking non

I think that they are preparing for the future where everyone will realize that the whole Facebook is a user data abuse (and more because they are tracking non users without their consent). I think they have decided to take the hit rather now (in the stock price) than in the future assuming that the hit now will be smaller now than later.