@Xeleron - you post a picture by uploading it first to some online repository (like imgur, tinypic, imageshack, etc.) - it does not need to be public, but it does need to be linkable - and then click on the image icon (next to the smiley icon) and insert the link for it in the pop-up. Note that it is nice to embed the picture in a spoiler.
@Xeleron You can also link your post on Facebook but it has to be public. In this case the image will not appear but only the link.
