The right sidebar should be able to be hidden or outside of the content. It currently covers up a majority of the images on the right

Assuming you're on a desktop, and you're currently scrolled over an image, put your mouse cursor just to the left of it. It'll hide itself after a half second or so.

Yes but depending on the size of your screen (or if you zoom in the text) it keeps reappearing every time you scroll down the page a little :/

Why does every mention of a phone camera have to be iPhone? Can some people not separate phone from iPhone any more?

Because it's the most used phone camera, the most common point of reference.

See Flickr's stats: https://www.flickr.com/cameras