I've loved using Instagram Stories since they launched, but have absolutely no interest in using the equivalent features in Messenger or Facebook proper. And Snapchat never really took for me.
The people I see on Instagram aren't my small circle of real friends, or my bigger bigger circle of old acquaintances, but rather (mostly random) interesting people posting interesting photography of subjects I'm interested in. The Stories feature (temporary, unpolished) compensates perfectly for the deficiencies of the main Instagram product (permanent, curated), and vice versa.
The people I see on Instagram aren't my small circle of real friends, or my bigger bigger circle of old acquaintances, but rather (mostly random) interesting people posting interesting photography of subjects I'm interested in. The Stories feature (temporary, unpolished) compensates perfectly for the deficiencies of the main Instagram product (permanent, curated), and vice versa.