You've long had the option to remove Instagram followers if you keep your account private, but that's something of a compromise. Why do you have to shut yourself off from the outside world just to keep out a few undesirables? You might not have to make that choice going forward. Instagram has confirmed that it's testing an option to remove followers while maintaining a public account. While it hasn't share more details than that, the app informs testers that it won't notify soon-to-be-former followers that you're leaving them behind. Much as with other social networks, that's likely to minimize outrage from people who can't handle the rejection.