Throwaway for obvious reasons. I joined to work on meta ads semi-recently. My thinking was that they were under invested in techniques I knew were successful from my time at Google. What I found was a lot of smart people who knew they were under invested and we're capable of closing the gap, but the infrastructure they sat upon was too hard to use to do anything different, and management that rewarded the appearance…
From a small business customer perspective: I have a small local business that I run on the side. It's a franchise type of business like what you would see in your local strip mall. We used to get our best leads from Facebook ads. More than 90% of the clicks were mobile. A high percentage of the clicks would set a tour and a decent percentage of those sign up their kid(s) for the program we offer. We went from about 20 good leads per month to 0-1 for the same ad spend. Yes, it really was that extreme. I don't know who facebook is showing our ads to, but they do not want our product.
I just got around to canceling with the agency that handles our ad spend today. The N of this story is 1, but if other businesses are experiencing anything close to the same, fb's revenue decline is just beginning.