If you're wondering why this would be nice, it's very useful if you want to write a blog post or something and say, "Hey, we just added support for XYZ to our tool"

Think of the sites that allow you to share on different services and they have like 100s of logos. Imagine trying to build that list. I've done stuff like that and it's a pain to try and find all the images. If there were a Chrome plugin that would tell me that a site has a sanctioned logo, it would simplify this kind of task by a ton.