Thank you for a great addon. However, the Imgur integration is implemented incorrectly. Imgur provides several kinds of links, 3 of which are usable on forums: Share link, Direct, and BBCode (Forums).
I agree that when a Share link is used in a post, then the image should be embedded, including a link to the Imgur page, with an Imgur logo, etc.
However, when a user uses a "direct" link, the addon should either turn it into a BBCode/Forums link or just leave it alone as a URL. Instead, the addon turns it into the same as a "Share" link, which adds the unnecessary Imgur logo, etc, but the worst of all is that it uses javascript to display a plain image, which slows down performance on mobile browsers and unnecessarily wastes battery for mobile users.
Another unfortunate side effect is that if the forum owner turns off the add-on in the future, all image links will be ruined.
I hope you make an adjustment to address this issue.