Seriously? I must politely say that if you’re not willing to take a few seconds to think about improving your image & possibly giving it a caption, I likely don’t need to see it.
I don’t accept that simply maximizing active use, consumption, etc. is an unquestionable good. (That’s how cancers operate.) You want quality, and if Instagram further reduced friction (e.g. by enabling batch upload from desktop apps), it would turn into an unwashed Facebook stream.
Instagram makes me a better photographer in that it induces me to slow down just a tiny bit & try to craft an image/caption pair that my audience will like (literally). It’s an incredibly simple form of gamification, and dang if it doesn’t work.