The question that remains is whether or not it is legal to sell Instagram accounts. There are no laws that prohibit the buying and selling of any social media accounts. So when you sign up for Instagram, you agree not to sell your account, but the Terms of Service violation is not subject to any form of a legal breach.
What happens after 10k followers on Instagram?
Once you have 10k followers, Instagram will make it easier for you to get people to your website via Stories with the swipe up to link feature. Swipe up is the only way to get a direct link from your Instagram to your other web properties. And, it’s available in STORIES, if you have 10k followers.