There are a few things you can do to help determine who has saved your pictures on Instagram. First, check to see if anyone has commented on your photos. If they have, then you can be sure that someone is interested in what you have posted and is likely keeping an eye out for new content. If no one has commented on your photos, then it’s likely that someone forgot to save them or that they are not very interested in what you have posted. If you’re not sure who has saved your pictures, take a look at their account and see if there are any photos from before the beginning of this year or after the end of last year. This will help to determine whether or not someone who has been following you for awhile and may be familiar with your posts is responsible for saving them.