Instagram Hulabaloo

Ok Lazyweb - what's the deal?

I've heard (what sounds like) this same story many times before. As an illustrator, I've heard about just about every place that stores images. Inevitably, the chaos dies down once folks point out that the offending party isn't out to steal your work/images, but rather just protecting themselves legally when they display said images to whoever you want to see them.

How is this Instagram thing different?

Thanks!