Hi! I do this and there are a few reasons why. I shoot 3:2 and want my photos to retain their entire frame. I add white bars to the side which, after you have posted a few, helps break up the images on your profile as people scroll. And when I add my post my story, the white bars on the side naturally run into the white bars IG will add to the top and bottom, making a nice frame.
TL;DR I do it because I like the way it looks and it helps convey what I see as a photographer.
Hi! I do this and there are a few reasons why. I shoot 3:2 and want my photos to retain their entire frame. I add white bars to the side which, after you have posted a few, helps break up the images on your profile as people scroll. And when I add my post my story, the white bars on the side naturally run into the white bars IG will add to the top and bottom, making a nice frame.
TL;DR I do it because I like the way it looks and it helps convey what I see as a photographer.