The follower/following ratio is a metric some users use to judge the quality of your account. Those with low follower/following ratio are typically low-quality accounts that depend only on the follow/unfollow method to gain followers, whereas accounts with high follower/following ratio are influencers and celebrities.
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.