If you've ever been looking at someone's Instagram profile and accidentally liked a photo posted years ago, you probably know that awkward moment all too well. Especially when it's the profile of an ex, someone you just met, or just someone who shouldn't realize you're looking at old photos.
But what really happens if you immediately remove the like? Instagram head Adam Mosseri recently gave the answer, and it seems that "undo" doesn't always save you from embarrassment.
In a video posted to social media, Mosseri explained that Instagram generates two types of notifications when someone likes a post. One appears within the app, while the other is sent as a push notification to the phone of the person who posted the photo.
This means that if you immediately unfollow, Instagram can delete the notification within the app. However, it cannot retract a push notification that has already been sent to the other person's phone.
So, even if there is no trace of the "like" left on Instagram, a notification like "X liked your photo" may have already arrived on the phone's lock screen.
If the person taps on the notification after the consent has been withdrawn, they will no longer find a corresponding record within the app. The problem is that there is no way to know whether the notification has been seen or not.
Why can't Instagram delete it?
According to Mosser, Instagram has no way of checking notifications that have already been sent to a user's device. Once the push notification reaches the phone, the app cannot delete it from the other person's screen.
Therefore, immediately removing the "like" does not guarantee that the person did not see the notification. It all depends on the notification settings that he or she has enabled on the phone.
User feedback
The explanation from the head of Instagram caused quite a stir, as accidentally "liking" an old photo has become one of the classic nightmares of social media users for years.
Some welcomed it with humor, while others admitted that they now have one more reason to carefully check where they click. So, even if you remove the "like" in a second, that second could be the exact one that was enough to trigger a notification on the other person's phone.