Pasting vids or photos doesn’t work that way. You need to paste a link to vid/photo and it must be accessible by so called robots.
These [URL] parts are, I think, added automatically but I’m not sure cause this photo was sent to me by my friend using TS3 Client.
Also, Facebook pictures do not work (or at least they weren’t working back when we sent them each other) as well as Twitter ones.
