Being a good, diligent, playful and sometime helpful girl that I am...
Here is a 'multilingual'
When you will add picture and will want to post the reply without any text, you have to add at least one character (for example comma), otherwise the reply will not be submitted.
Edit: Still, you can get URL of image from any page, which enables you to store images; or use the servers dedicated to the sharing of pictures like Imageshack.us
. So you can save it here on LttD/Satannet server by adding a file, or you can save it on some other server and link it.