Yup, and also key: >>"...The company has also hidden the extent to which content production per user has been in long-term decline" IOW, they still count as "

Yup, and also key: >>"...The company has also hidden the extent to which content production per user has been in long-term decline" IOW, they still count as "active users" people who have abandoned the platform except for occasionally checking on other contacts there. Which means that FB are at real risk of a vicious cycle tipping-point as users disengage, notice less activity in their circle, disengage, and pretty soon everyone either notices that nothing is happening, or doesn't notice and just stops checking in...