Posted about how productive you are yet? Got that well lit photo of your newest fit? Reached more than 10,000 followers by now? - No? Huh!
Instagram not real life
People who have 800 followers but shot for Nike etc or 2k and shot international campaigns. Some even have no instagram and are successful models.
If instagram is banned tomorrow what do you have left?
Business contacts etc
Who knows about you, your website, your service?
Where do you have contact details of important people stored?
How do people know what you do and what's happening?