Just an FYI, and I apologize if you already know this. To use the Image Function on the Forum you can’t use any old link to make the picture appear. For example that link you posted above won’t work in the IMAGE Function on the Forum. The link needs to end in a supported type format (a file extension at the end of the link) like .jpg or .tiff
I don’t know whether you were using an iPhone. But I find that the Chrome browser on the iPhone is better than the Safari browse for finding the actual link for the picture. In Safari if you press on the picture, a box usually pops up that says Save. In Chrome a box pops up that says ‘Open Image.’ Once you choose that, the link for the picture is in the browser window. It usually has a proper file extension. You can then copy that link and paste it into the Image Function on the Forum.
Gman