According to the new Instagram update, you cannot follow more than 60 pages or people per hour. Of course, there is no limit to the people who are following you (or your followers). No matter how many people follow you, you will not face any limitations.
Accounts that repeatedly switch between public and private can create poor sharing experiences for others. This behavior is discouraged on Instagram to help protect the community from inauthentic activity.
Instagram pages Admin believe that when their accounts are in Limitation they take official Promotion of instagram from Instagram ads!