Facebook UI changes are designed specifically to make you frustrated .. frustrated enough that you spend time getting to know the new UI (spending more time on

Facebook UI changes are designed specifically to make you frustrated .. frustrated enough that you spend time getting to know the new UI (spending more time on the platform), but not over frustrating so you stop using it. I doubt this went live without it going through hundreds of focus groups to find that sweetspot to maximize every user's value as ad revenue.