Well, there's more than a 50% probability that they're leaving because of conflicts with Facebook, the privacy issues and the push to add more and more ads everywhere. If this were the case, I hope they'd speak up sooner than later. We need voices from within FB and its acquisitions to tell everyone how messed up things are behind the scenes.

But you have to give credit to how the company started and how it's been running all these years. Instagram is still flourishing (and grew in the face of competition from Snapchat, even by copying its features and making it better) and seems like a nicer group of communities with a lot less of the nastiness that's seen on Facebook (I don't have much first hand experience, but do see some feeds on the web). That's not easy to cultivate, and for reasons I haven't read about or examined, the Instagram users have self-selected such a group to be in.*

Here's hoping the founders start something new and fresh, far from privacy invasive platforms.

*: I'd be interested in any writings about how these communities developed to be what they are.