Remember the delete Uber campaign, the Equifax breach, the WFC accounts, the Bank of America suits, the Intel chip vulnerability? The market doesn't. The market has a short memory, and FB is not going anywhere. However, there may be some welcomed changes in data abuse. With that said, I think the stock is a bargain today.
If users happen to decide that a company is not "cool" anymore or dispase its public figure(Zuckerberg), it may actually go away.
Remember IE(stands for Internet Explorer)? Using Firefox and later Chrome became a crusade and the almighty brand of the richest person in the world that holds the monopoly on computers platforms bled to death.