Who Cares
Who Cares answered question

This is a way for Instagram to hold accounts hostage that they do not want using their service.

I maintained a profile that flirted with their terms of service, more specifically, section 2 of their Basic Terms: 

You may not post violent, nude, PARTIALLY nude, discriminatory, unlawful, infringing, hateful, pornographic or sexually SUGGESTIVE photos or other content … Read more