While entering a couple of my questions, I've wanted to upload an image. Not being familiar with StackExchange's formatting commands, nor with how to upload images, I've clicked the "Images" help tab, which tells how to refer to externally-hosted images. This didn't help me, as I needed a hosting service as well as a way to refer to it.
After some Googling, and searching the interface, I finally found the image icon on the tool bar, which did what I needed. But this all should be simpler.
Just now, while researching this question, I found that clicking the "Image" tab made the image icon bounce a few times. Unless that's a recent change, it wasn't enough to help me. Even if it was a recent change, I still think the "Images" text should include a reference to the image icon. Something like "If your image isn't available at a URL, you can use the imagur hosting service by clicking the XXXX icon on the toolbar."