You can try to copy and paste it, not from the Quick Reply box, you need to use the "Reply" or "Quote" buttons or the "Rich Text Reply" link on top of the quick box, although it doesn't always work, I don't know why.
I'll try now with a pic of mine:
No, not working. Tried also opening pic with the browser, then copying and pasting it, nothing again, neither it worked using the url shown in the address box