@cdevroe Great point:
When Instagram pivoted from a check-in app to a filtered photo app it exploded because it made photo editing and publishing one simple step. It did one thing well. Slowly it has added other features but this primary feature is still the foremost one today.
Jack of all trades, master of none. It'll take more than a chronological timeline and a pledge to remain ad-free to dethrone Instagram as the first app people think of when they want to post a photo.