This application is losing its value and getting WORSE. One out of every five images is an ad and most of those are true spam. Reporting ads does no good as Instagram ignores what you report and you can see the same ad again.
You no longer get photos from those you follow in a timed sequence. You just get lousy ads and a photo from some time in the past.
Other applications are rising up, better for sharing photos. Instagram continues to be devalued and lower the bar since its acquisition by Facebook.
jr98662 about Instagram, v36.0