The Medium is (still) The Message
I am facebook. I am instagram. I am netflix. The content is irrelevant. With each new medium, I have agreed to enter a new reality, which will drastically reshape my brain. It's best to imagine this as a physical entity, for each medium's impact is not restricted to digital interactions only. It actually psychologically re-jigs our brains and changes who we are and eventually what we value.
The content (aka the message) is never as important or impactful as (agreeing to join) the medium.
The fact that you are an instagram users is more important than any actual message you could receive or could create through instagram. The medium is the point. Not the message.