Hi, I wonder if it's possible to make the thumbnail feature work on this forum? On other forums you will get to see a thumbnail of the pic, if you post the Forum-BBCode. http://postimg.org/image/zc3bgr18n/460ac6fe/
You can have thumbnails and full size images display in your posts by using this forum's own attachment upload feature... Every post can contain up to 5 images of its own. But, we don't display images in-line (inside posts) when they are hosted on a third-party webserver (such as postimage.org, and any other). The reasons for that are described in this announcement thread: Third-party hosted image linking disabled