As with other recent third-party forum adds-on that are no longer supported, I've had to disable one that extended media URL embedding to services like Imgur, Twitter, Instagram, and others. The problem with this add-on was... It relied on sending the embed request to the developer's website, which has become unstable. Due to the above, it also increased load time/client-side overhead on busy pages; like "What beer are you drinking now?" threads. It stripped important data from the original URL when posting to the site. Meaning that we can't easily reconstruct previous embeds and replace them with at least links. It was breaking Instagram embeds this morning and impacting page rendering, which was the last straw for me. In hindsight, I should've never installed this add-on. Live and learn. Why don't we allow everyone to upload images to the forum? We don't want to become an image host or incur the costs. So what now? This could be resolved (at least in part) once we upgrade our forums, but there's currently no timeline and it's a massive project. In the meantime, you can still embed images, however, you'll need to ensure that whatever service you use allows hotlinking (displaying an image on another site using a direct link to it). And YouTube and Vimeo will automatically embed if you drop a valid link in your post. See "Forums" in the FAQ for more. Sorry for the inconvenience, but ensuring the site remains operational and as responsive as possible is our main priority. Thanks for your understanding and support.