Hmmm, another way of looking at what’s happening with Facebook starts from the understanding that people don’t quit, it’s not easy to really delete your account, sure you can make it invisible but Facebook retain all your data and continue tracking you.
So to see what is going on it’s necessary to look at users engagement with the site. There are very significant trends showing users visiting less often and spending less time onsite. And of course advertising revenue is falling but Facebook’s claimed figures will never show this, we can only see it by looking at industry wide comparisons.
And let’s not forget Facebook’s claims for its total number of members were always a fairy story, there was no effort to take into consideration dead accounts, multiple accounts operated by the same user or fake accounts serviced by software bots.
Facebook is already fading, but never lived up to the hype anyway.