Seems like, when you upload images, wordpress automatically embeds them as a hyperlink to themselves by default. In addition to putting un-needed code on the page it seems like a dis-service to readers who might accidentally click on the image, thinking it's a link to something.
I figured out that if you choose "none" once, then it doesn't happen again, however, many writers don't seem to understand what that means, and don't notice that they've added images to posts with useless hyperlinks behind them.
Major pain in the butt for blogs with many writers.
Anyone looking to make the default NO LINK and making it last?