I noticed in a couple of professional WhatsApp groups that there was somewhat a curve in the number of posts and interactive discussions between the members:
Initially there were increasing numbers from multiple members, later on there were a lot of interactions, however after a couple of years, the trend of discussions was apparently less, with fewer members posting comments. Many members became somewhat "silent whatsappers"?!
Have you noticed any similar events in such social media groups?
Is there a "life curve" for these groups?